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    Dr. Mark D'Esposito: How to Optimize Cognitive Function & Brain Health

    Research suggests that certain drugs can enhance working memory by affecting dopamine, norepinephrine, and acetylcholine pathways, but the effectiveness may depend on individual's unique neurochemistry

    enFebruary 19, 2024

    About this Episode

    In this episode, my guest is Dr. Mark D'Esposito, M.D., a neurologist and professor of neuroscience and psychology at the University of California, Berkeley. We discuss the brain mechanisms underlying cognition and the forms of memory required for focus, productivity, planning and achieving goals, and learning. We discuss neurochemicals such as dopamine and acetylcholine and how they can be leveraged to improve cognitive functioning. We also discuss concussion, traumatic brain injury (TBI), Alzheimer's, and Parkinson's disease, and ways to restore or slow cognitive decline by using pharmacologic, lifestyle and behavioral protocols. This episode provides a modern understanding of cognition and memory and actionable tools to optimize brain health and function. For show notes, including referenced articles and additional resources, please visit hubermanlab.com. Thank you to our sponsors AG1: https://drinkag1.com/huberman Maui Nui: https://mauinuivenison.com/huberman Joovv: https://joovv.com/huberman Eight Sleep: https://www.eightsleep.com/huberman LMNT: https://drinklmnt.com/huberman Momentous: https://livemomentous.com/huberman Timestamps (00:00:00) Dr. Mark D’Esposito (00:02:08) Sponsors: Maui Nui, Joovv & Eight Sleep (00:06:23) Brain & Frontal Lobes, Prefrontal Cortex, Executive Function (00:10:31) Frontal Lobe Development, Children (00:14:12) Rules, Context & Impulse Control; Learning & Goals (00:21:45) Focus, Improving Executive Function (00:26:04) Connections & Top-Down Signals (00:29:02) Sponsor: AG1 (00:30:29) Frontal Lobe Injury; Emotional Regulation (00:37:26) Smartphones, Social Media (00:44:37) Working Memory, Dopamine (00:52:59) Sponsor: LMNT (00:54:22) Dopamine Levels & Working Memory, Cognitive Tasks, Genetics (01:00:03) Bromocriptine & Working Memory, Dopamine (01:06:21) Guanfacine, Neurotransmitter Levels, Pupil Dilation & Biomarker Tests (01:12:46) Bromocriptine, Olympics; Pharmacology & Cognitive Function, Adderall (01:19:27) Concussion, Traumatic Brain Injury (TBI) (01:25:22) Sleep, TBI, Concussion & Executive Function; BrainHQ (01:31:57) Aging & Frontal Executive System; Brain Health (01:39:26) Tools: Brain Health & Boosting Executive Function, Books (01:47:26) Alzheimer’s Disease, Genetics, Pharmacology (01:51:48) Parkinson’s Disease, L-Dopa; Coping with Alzheimer’s; Nicotine (01:58:37) Estrogen & Dopamine, Cognition; Tool: Physical Exercise (02:04:43) Tool: Mindfulness Meditation & Executive Function (02:10:31) Brain Networks; Modularity (02:17:08) Modularity, Brain Indices (02:22:53) Psilocybin; Transcranial Magnetic Stimulation (02:30:16) Zero-Cost Support, Spotify & Apple Reviews, YouTube Feedback, Sponsors, Momentous, Social Media, Neural Network Newsletter Disclaimer

    🔑 Key Takeaways

    • Executive function and memory are interconnected, and both are crucial for daily life. Strategies to optimize cognitive function include modern understandings of cognition and support from sponsors Maui Nui Venison, Juv, and 8Sleep.
    • Damage to the frontal lobes can lead to difficulty setting priorities, achieving goals, and regulating emotions. The frontal lobes are the first system to be affected during normal aging and controlling the temperature of your sleeping environment can significantly improve sleep quality, essential for optimal brain health.
    • The frontal lobes, responsible for executive functions, take time to mature, allowing us to adapt to the world but posing challenges during adolescence. Different subregions develop at varying rates, impacting abilities like focus and inhibition.
    • Frontal lobes store rules hierarchically, enabling effective application in various contexts, from simple tasks to complex goals. Children can strengthen these abilities, as shown in the marshmallow experiment.
    • The prefrontal cortex is crucial for maintaining goals and focusing on tasks, and its functions can be strengthened through targeted training and therapy.
    • The prefrontal cortex is vital for brain functioning, filtering information, and switching tasks, with connections to the body. Support it with supplements like AG1 for optimal health.
    • The frontal cortex is crucial for applying knowledge, making decisions effectively, and managing emotions. Damage can lead to impairments, but its flexibility and adaptability are key strengths.
    • Technology can enhance brain function but may also limit adaptability and empathy through learned rules and algorithms
    • Working memory is a crucial cognitive ability that allows us to hold and manipulate information, complete tasks, and maintain focus. Its development and use may be hindered by excessive technology use, and dopamine plays a significant role in its function.
    • Dopamine, a brain chemical, helps maintain active neurons in the frontal lobes for working memory, allowing the brain to act as a buffer and keep information online during use.
    • Hydration and the right balance of sodium, magnesium, and potassium are vital for peak mental and physical performance. Measuring working memory capacity can serve as a proxy for dopamine levels, helping to optimize them for better focus and cognition.
    • The balance of dopamine in the brain, influenced by Comt, impacts cognitive functions. Half the population has underactive or overactive Comt, leading to varying dopamine levels. Potential drugs to enhance dopamine levels exist, but pharmaceutical companies have shown little interest due to a disease-centric focus.
    • Research suggests that certain drugs can enhance working memory by affecting dopamine, norepinephrine, and acetylcholine pathways, but the effectiveness may depend on individual's unique neurochemistry
    • Understanding dopamine balance is crucial for optimal brain health. While blood tests don't provide this info, brain tests or proxies like pupillary dilation can offer insights.
    • While certain drugs may enhance cognitive function, they come with risks and should be used under a doctor's guidance. Modafinil, a potential cognitive enhancer, needs more research. Prioritize sleep and be aware of TBI and concussion causes and prevalence.
    • Concussions can cause long-term symptoms like mental fogginess, sensitivity to light, and executive function deficits. Mechanism involves axon tearing in the brain, especially in the frontal lobes. Even mild symptoms can cause significant daily life impact. Seek proper medical attention for management.
    • Brain injuries can affect working memory and sleep quality, creating a circular problem where sleep deprivation worsens cognitive deficits and vice versa. Optimizing sleep, nutrition, and activity, along with technology-based solutions, can aid recovery, but access to these interventions remains a challenge.
    • Through focused training, cognitive functions like working memory and frontal lobe function can be improved in adults, even with injuries or concussions. Regular use is key to maintaining these functions, while distractions and lack of engagement can lead to regression.
    • Creating a Brain Health Index could revolutionize brain health assessment, covering various aspects like cognition, social factors, and lifestyle.
    • Regular exercise, cohesive plots or structures, coaching, and intentional learning experiences are essential for maintaining and improving cognitive function. While technology can aid, it's not a replacement for human interaction and meaningful experiences.
    • Alzheimer's is a complex neurodegenerative disorder with multiple factors. Current treatments offer partial relief, and research focuses on blocking amyloid or other disease aspects. Managing symptoms and supporting patients is essential.
    • Nicotine, a potential cognitive enhancer, may improve symptoms of neurodegenerative disorders but does not slow their progression. Research suggests sex differences in neurotransmitter responses to treatments, which could influence effective approaches for men and women.
    • Estrogen levels affect frontal lobe function and working memory, while lower dopamine and estrogen levels impair cognitive abilities. Aerobic exercise and mindfulness practices can improve cognitive performance by increasing dopamine availability and enhancing executive function.
    • Mindfulness practices like meditation and deep rest have positive effects on mental and physical well-being, improving focus, providing new perspectives, and promoting relaxation. Neuroscientists and neurobiologists openly discuss these practices, which positively impact cognitive function and brain health.
    • The brain functions as a complex network with various regions acting as hubs, leading to new insights in neurological conditions and targeted treatments. Individuals with more modular brain networks may benefit more from certain interventions.
    • Understanding brain network activity beyond specific areas can lead to valuable insights and effective interventions. Developing metrics for measuring brain modularity in real-time could advance neuroscience research.
    • Researchers use wearable devices to measure brain states through physiological data, revealing insights into cognitive and emotional functions. Connectivity and modularity are not the same, and changes during tasks differ from baseline.
    • Dr. Mark Desposito discussed various neurological conditions, practical interventions like mindfulness exercises, and the importance of advocacy and ongoing research for neurological health.

    📝 Podcast Summary

    Understanding the Interconnection of Executive Function and Memory

    Executive function and memory are interconnected and crucial for daily life. Dr. Mark Desposito, a neurologist and professor of neuroscience and psychology at the University of California, Berkeley, explains that executive function enables us to carry out specific cognitive strategies, and it is essential for relationships, work, school, and athletics. Furthermore, memory plays a significant role in this process. The neural circuits controlling executive function and memory interact, and dopamine plays a key role in both. The discussion also covers strategies to optimize cognitive function in healthy brains and restore it in disease or injury conditions, such as traumatic brain injury, concussion, Alzheimer's, Parkinson's, and attention deficit disorders. Listeners will learn about the modern understanding of cognition and ways to optimize brain function and health. Additionally, the podcast sponsors, Maui Nui Venison, Juv, and 8Sleep, offer high-quality products related to nutrition, red light therapy, and sleep that can support brain health.

    Understanding the Role and Vulnerabilities of the Frontal Lobes

    The frontal lobes, specifically the prefrontal cortex, are a crucial part of the brain responsible for executive functions, cognitive control, and higher-level thinking. These areas control the brain like a CEO or conductor, allowing us to plan, organize, and transfer thoughts into actions based on goals and intentions. Damage to the frontal lobes, whether from neurodegenerative diseases, physical injuries, or everyday stressors like sleep deprivation, can lead to mild to severe symptoms such as difficulty setting priorities, achieving goals, and regulating emotions. The frontal lobes are also the first system to be affected during normal aging. Understanding the role and potential vulnerabilities of the frontal lobes can provide valuable insights into maintaining optimal brain health. Additionally, controlling the temperature of your sleeping environment, as offered by products like Eight Sleep, can significantly improve the quality of your sleep, which is essential for overall mental and physical health. By allowing you to program the temperature of your mattress and sleeping environment, Eight Sleep ensures that the appropriate temperature changes occur at the beginning and end of your sleep cycle, making it easier to fall and stay deeply asleep and wake up feeling refreshed and energized.

    Frontal lobes take a long time to fully develop

    The frontal lobes, a crucial part of the brain responsible for executive functions, decision-making, and goal-directed behavior, take a long time to fully develop. This gradual development allows us to explore and adapt to the world but can also lead to challenges during adolescence. The frontal lobes are complex, consisting of various subregions, each maturing at different rates. A child's ability to focus or inhibit motor movements might reflect the development of specific frontal lobe systems. The frontal lobes' ability to adapt to different contexts and apply appropriate algorithms is essential for functioning effectively in various environments. Understanding the nature of these algorithms and their philosophical implications can provide insight into the complex role of the frontal lobes in our daily lives.

    Frontal lobes and rule application

    The frontal lobes play a crucial role in storing and applying rules appropriately in various contexts. Dr. Lumet's studies from the 80s showed that patients with neurological conditions had difficulty following social rules despite knowing they were inappropriate. The frontal lobes are responsible for storing rules in a hierarchical manner, allowing us to apply them effectively in different situations. This includes rules for simple tasks like playing golf or more complex ones like delaying gratification. Children, especially, can learn and strengthen their prefrontal cortical abilities to defer and maintain longer-term goals. The two marshmallow experiment is an example of a frontal lobe task, where kids learn to delay gratification and build self-control. Overall, the frontal lobes' ability to store and apply rules appropriately is essential for adaptive behavior and learning.

    The prefrontal cortex and its role in focus and executive function

    The prefrontal cortex plays a crucial role in maintaining goals and focusing on tasks, and this ability can generalize to various situations. However, improving focus and executive function through therapy requires active effort and discipline. The limbic system, which includes areas involved in emotions and reflexive behaviors, interacts with the frontal cortex and can impact focus and attention. The frontal cortex's connections with this circuitry are complex, and more research is needed to fully understand their nature and implications. Ultimately, the prefrontal cortex's functions are essential for successful goal-oriented behavior and can be strengthened through targeted training and therapy.

    The prefrontal cortex is the brain's conductor, controlling behavior and cognitive functions

    The prefrontal cortex is a crucial area of the brain that connects to almost every other part and plays a significant role in controlling behavior and cognitive functions. It acts as an orchestra conductor, filtering relevant information and allowing us to switch between tasks. The prefrontal cortex also has connections to the body, influencing functions such as heart rate and respiration. It's essential for proper brain functioning and can be supported through supplements like AG1, which provides necessary vitamins, minerals, probiotics, prebiotics, and adaptogens. The prefrontal cortex can be thought of as the seat of human functionality, and damage to this area can result in dysfunction.

    The frontal cortex translates intentions into action and interacts with emotions

    The frontal cortex, a complex part of the brain, plays a crucial role in allowing us to be who we are by translating our intentions, goals, and desires into action. It's not just about having knowledge, but the ability to apply it in a context-specific manner. The frontal cortex is connected to the limbic system, which deals with emotions, creating an intricate interplay between the two. Damage to the frontal cortex can lead to various impairments, affecting both executive functions and emotional states. While it's important to establish routines and scripts to navigate daily life, the true power of the frontal cortex lies in its flexibility and adaptability, enabling us to make decisions effectively even in stressful or unfamiliar situations. Sleep deprivation can impair frontal lobe function, affecting both executive functions and emotional regulation.

    Considering the impact of technology on brain development

    While technology, such as smartphones and social media, can be beneficial and adaptive, it's important to consider the rules and algorithms we're learning when using these devices. The frontal cortex, which helps us adapt to novel situations, may be learning rules that don't generalize well to other areas of life. For example, scrolling through social media or text messaging may help us multitask, but it doesn't help us make better decisions or be more empathetic in other domains. The speaker emphasizes that technology isn't inherently good or bad, but it's important to be mindful of how it's shaping our brains and our behavior. The speaker also notes that technology can help optimize frontal lobe function in certain ways, but it's a concern that too much time spent engaging in algorithms that don't generalize may be detrimental to adaptive behavior in other areas of life.

    The Importance of Working Memory and Its Role in Everyday Life

    Working memory, the ability to hold and manipulate information in our minds, is a crucial foundation for cognition and everyday life. While it may seem like a passive ability, working memory involves actively manipulating and using information to complete tasks. This superpower allows us to read, plan, organize, and carry out behavior by holding in mind rules, goals, and other essential information. However, the constant use of technology, such as social media and GPS, may hinder the development and use of working memory skills, potentially leading to detrimental consequences. The role of dopamine in working memory is also significant, as it plays a crucial role in motivation and goal-directed behavior. Understanding the importance of working memory and its relationship to dopamine can provide valuable insights into maintaining cognitive health and optimizing our use of technology.

    Dopamine's Role in Working Memory

    Dopamine plays a crucial role in working memory by facilitating persistent neural activity within the frontal lobes. Working memory and long-term memory are separate systems, with working memory being the ability to hold information in mind for short periods, and long-term memory being the consolidated form of memory. The frontal lobes are responsible for working memory, and dopamine helps maintain the active state of the neurons involved in holding information in mind. The frontal lobes can call up any part of the brain and keep it active, making the whole brain act as a buffer. Dopamine, a neuromodulator made in the brainstem, has two major circuits: one that goes to the basal ganglia for motor function and another that goes to the frontal lobes to improve working memory. By modulating the persistent activity in the frontal lobes, dopamine helps keep information online during the time it's needed. In essence, dopamine acts as a facilitator for both physical and mental movement, depending on the circuit it's acting on.

    Proper hydration and electrolyte balance for optimal performance

    Proper hydration and the correct balance of electrolytes, particularly sodium, magnesium, and potassium, are crucial for optimal mental and physical performance. Element is an electrolyte drink that can help provide these essential nutrients, with zero sugar and a variety of flavors. Regarding dopamine and working memory, increasing dopamine levels can enhance working memory, but only up to a point. Measuring baseline dopamine levels can be challenging, as there is no simple blood test, but working memory capacity can serve as a strong proxy. Those with higher working memory capacity likely have higher dopamine levels, while those with lower capacity may benefit from dopamine enhancement. The goal is to optimize dopamine levels, not just increase them indiscriminately.

    Discovery of Comt's role in dopamine levels and cognitive functions

    The balance of dopamine in the brain, influenced by an enzyme called Comt, plays a significant role in cognitive functions like working memory. Approximately half the population has either an underactive or overactive version of this enzyme, leading to varying dopamine levels. This discovery, made in 1979, could potentially pave the way for the development of drugs to improve cognition. However, despite the potential benefits and established safety of such drugs, pharmaceutical companies have shown little interest due to a disease-centric focus in neurology. The use of dopamine agonists like bromocriptine, which can enhance dopamine levels, could potentially improve working memory for those with underactive Comt enzymes. Yet, despite the clear data and potential market, pharmaceutical companies have yet to pursue this avenue.

    Drugs that improve working memory may not be specific to the drug itself but rather how it interacts with individual's neurochemistry

    While certain drugs like bromocryptine and Nora Penephrine have been shown to improve working memory by impacting dopamine pathways, the effectiveness of these drugs may not be specific to the drug itself but rather the unique way they interact with individual's neurochemistry. Other neurotransmitters like norepinephrine and acetylcholine also play a role in working memory and can be boosted through various means. The field of pharmacology and cognition is complex, and the interactions between different neurotransmitters and their impact on cognition are not yet fully understood. Currently, there is no clinically available, accurate blood test to measure neurotransmitter levels directly. Instead, researchers and clinicians often rely on behavioral tasks, neuroimaging, or other indirect methods to assess neurotransmitter function. Ultimately, the goal is to develop personalized cocktails of drugs that can effectively target an individual's unique neurochemistry to improve working memory and other cognitive processes.

    Balance between dopamine in prefrontal cortex and basal ganglia impacts executive function

    Understanding the intricacies of the brain's dopamine system goes beyond just measuring dopamine levels. The balance between dopamine in the prefrontal cortex and basal ganglia plays a crucial role in executive function, with the former promoting stability and the latter allowing for flexibility. This balance is essential for optimal brain health, and while a blood test cannot provide this information, a brain test or proxy, such as pupillary dilation, can offer insights into neuromodulatory systems. The development of neural biomarkers is crucial for improving brain health, and while we have made progress in this area, more emphasis is needed. Historically, athletes have used bromocriptine, a dopamine agonist, to enhance reaction time, demonstrating the interest in augmenting neuromodulation for nervous system function. However, it's important to note that the use of such substances is not limited to professional sports and can be prevalent in various educational settings.

    Approaching cognitive enhancement with caution

    While enhancing cognitive function through pharmacology can be appealing in today's challenging society, it should be approached with caution and under the guidance of a trained psychiatrist. The use of drugs like Adderall and Ritalin, which were developed to help patients but lack specificity in modulating the system, should be avoided in favor of more targeted approaches. Modafinil, a drug thought to be a true cognitive enhancer, requires further research to fully understand its effects. Sleep, as the foundation of mental and physical health, should not be overlooked in the pursuit of cognitive enhancement. Traumatic brain injury (TBI) and concussion are common conditions that can impact working memory and dopamine levels, among other transmitter systems. TBI and concussion are not mutually exclusive to sports and football, but can also result from bicycle, car, and playground accidents. It's important to raise awareness of the various causes and prevalence of TBI and concussion.

    Understanding Persistent Post-Concussion Syndrome

    Concussions are more common and more serious than previously thought. While most concussions will recover, a significant percentage of people continue to experience symptoms long after the initial injury. This persistent post-concussion syndrome can include mental fogginess, sensitivity to light, and other executive function deficits. The mechanism behind concussions involves the tearing of axons in the brain, with the frontal lobes being the most common site of injury. Even mild symptoms can have a significant impact on daily life, such as difficulty focusing or performing at a normal level. A poor night's sleep can also result in a significant drop in prefrontal cortical function. It's important for patients to understand the nature of their injury and seek proper medical attention to manage their symptoms.

    Impact of brain injuries on cognitive functions and sleep

    Traumatic brain injuries and concussions can have a significant impact on an individual's cognitive functions, particularly working memory and sleep quality. These issues can create a circular problem, as sleep deprivation can worsen the deficits caused by the injury, and disrupted sleep is a common symptom among neurological patients. Optimizing sleep, nutrition, and activity are crucial for recovery, and technology-based solutions like Brain HQ's brain training games can help improve specific cognitive functions. However, access to these interventions can be a challenge for many patients. Despite advancements in our understanding of neuroplasticity and the potential for recovery, there is still a need for more effective and accessible therapies to help individuals overcome the challenges caused by brain injuries.

    Brain's ability to change and adapt continues into adulthood

    Neuroplasticity, the brain's ability to change and adapt, is not limited to childhood, but continues into adulthood. This is important because cognitive functions, such as working memory and frontal lobe function, can be improved through focused training, even in individuals with traumatic brain injuries or concussions. However, if these functions are not regularly used, there is a concern that they may regress, similar to the concept of "use it or lose it." Therefore, engaging in activities that challenge and strengthen working memory and cognitive function, such as reading, focusing on conversations, and limiting distractions, can help maintain and optimize brain health. The modern world, with its many distractions, can make this challenging, but simple practices, like setting aside dedicated time for focused activities and limiting phone use, can make a significant difference. The goal should not just be to prevent cognitive decline, but to optimize brain health and function, allowing us to play offense rather than constantly playing defense against brain diseases. The medical profession is starting to shift its focus towards preventative neurology and promoting healthy brain function, recognizing the importance of simple practices in maintaining cognitive health.

    Developing a Brain Health Index for Comprehensive Measurement

    We currently lack a comprehensive measurement for brain health, and developing a brain health index could provide a solution to track and optimize brain function. While we know that sleep, exercise, and nutrition are essential for brain health, there are other activities like reading fiction, learning new skills, and social interactions that can also benefit the brain. However, without a measurable way to track brain health, it's challenging to determine if these activities are effective. The Brain Health Project at UT Dallas is working on creating a Brain Health Index, which covers various aspects of brain health, including cognition, social factors, and lifestyle. This index could potentially revolutionize how we approach brain health, similar to how physical fitness has been measured and optimized. It's crucial to consider various aspects of brain health beyond executive functions and engage in activities that increase knowledge, promote social interactions, and enhance overall well-being.

    The importance of intentional learning experiences and human interaction for cognitive function

    While technology can aid in cognitive function, it's not a replacement for human interaction and intentional learning experiences. The conversation highlighted the importance of regular exercise for cognitive abilities, including working memory and goal management. The speaker emphasized the need for a cohesive plot or structure, like in literature or games, to stimulate the brain and improve cognitive function. The speaker also mentioned the importance of coaching and guidance in learning new skills, whether in a school setting or in adulthood. Additionally, the speaker touched on the complex relationship between genetics and Alzheimer's disease, noting that while having a family member with Alzheimer's does increase one's risk, it's not a guarantee. Overall, the conversation underscored the importance of intentional efforts to maintain and improve cognitive function throughout one's life.

    Understanding Alzheimer's: Hippocampus, Plaques, and Tangles

    Alzheimer's is a complex neurodegenerative disorder affecting various structures in the brain, including the hippocampus. The presence of plaques and tangles in neurons is a hallmark of the disease. However, despite this understanding, finding effective treatments has been challenging due to the involvement of multiple factors and the lack of a single primary transmitter or target. Current treatments, such as those that boost acetylcholine, only provide partial relief. The search for new treatments continues, with a focus on blocking amyloid or other aspects of the disease pathology. In the meantime, managing the symptoms and supporting patients and their families is crucial. Other conditions like Parkinson's disease, which primarily affects dopamine levels, have more straightforward treatment approaches.

    Socialization and emotional engagement are essential for neurodegenerative patients' well-being

    While medications can help manage the symptoms of neurodegenerative disorders like Alzheimer's and Parkinson's, socialization and emotional engagement are also crucial for patients' well-being. Memories and emotional connections cannot be fully replicated by drugs. The potential use of nicotine as a cognitive enhancer and possible protective agent against neurodegenerative disorders is an area of ongoing research. The dysfunctional cholinergic system in Alzheimer's disease may benefit from nicotine's effects. However, it's important to note that while nicotine may improve symptoms, it does not slow the progression of the disease. The future of treating neurodegenerative disorders may involve a cocktail of neuromodulators rather than a single drug. Additionally, there may be sex differences in neurotransmitter responses to treatments, which could influence the most effective approaches for men and women. Research on the role of estrogen in frontal lobe function and working memory provides evidence of the potential significance of sex differences in neurodegenerative disorder treatments.

    Hormones and dopamine impact cognitive function

    Both dopamine and hormones, specifically estrogen, play crucial roles in cognitive function. A study conducted on Berkeley undergraduates revealed that estrogen levels influenced frontal lobe function and working memory ability, with lower estrogen and dopamine levels leading to decreased cognitive abilities. This interaction highlights the importance of considering hormonal factors in addition to dopamine levels when optimizing cognitive performance. Furthermore, aerobic exercise has been found to improve working memory and cognition, potentially due to increased dopamine availability and improved blood flow to the brain. Mindfulness practices, such as meditation, can also enhance executive function by helping individuals maintain focus and improve their ability to relax and refocus. Overall, a holistic approach that considers dopamine, hormones, exercise, and mindfulness practices is essential for optimizing cognitive health.

    Mindfulness practices and their benefits in neuroscience

    Mindfulness practices, such as meditation and deep rest, have gained significant acceptance in the scientific community and have been shown to have positive effects on mental and physical well-being. These practices, which include techniques like yoga nidra and mindfulness meditation, can help improve focus, provide a new perspective on problems, and promote relaxation by engaging the parasympathetic nervous system. Neuroscientists and neurobiologists are now openly discussing these practices, and they have been shown to have a positive impact on cognitive function and overall brain health. The conversation around mindfulness and its benefits would have been unheard of just a few years ago, but now it is a popular topic in neuroscience research. Additionally, there is growing interest in the use of psychedelics as emerging therapies, although they carry more risk. The state of brain networks is also an important factor in determining how individuals respond to these therapies and benefit from them. Overall, the integration of mindfulness practices into mainstream science and society is a significant shift, and it holds great promise for improving our understanding of the brain and overall well-being.

    Understanding the brain as a complex network

    The brain functions as a complex network, with various regions acting as hubs that connect different areas. This network perspective is leading to new insights in understanding neurological conditions and developing targeted treatments. The prefrontal cortex, as a major hub, has a significant impact on the entire system. Additionally, the organization of brain networks, as measured by modularity, can predict well-being and response to interventions. Individuals with more modular brain networks, indicating greater separation of functions between areas, may benefit more from certain treatments. This network approach offers a promising new direction in neuroscience research.

    Emphasizing brain network activity for a comprehensive understanding

    Understanding brain network activity, rather than focusing solely on specific areas like the prefrontal cortex or hippocampus, is crucial for gaining a more comprehensive and actionable understanding of the brain. This approach, which emphasizes the verb states and actions of various brain areas, can provide valuable insights into interventions and their effectiveness. Additionally, there is a need for a better understanding and naming of different waking brain states, similar to how we understand the different stages of sleep. Developing a metric for measuring brain modularity in real-time could potentially serve as a valuable tool for assessing brain function and could lead to significant advancements in neuroscience research.

    Measuring Brain States with Wearable Devices

    Researchers are exploring ways to measure brain states using simple, wearable devices that can read out physiological data, such as oxygen and heart rate variability, to determine brain modularity and connectivity. These measurements can provide insights into cognitive and emotional functions. However, the relationship between brain modularity and connectivity is complex. For instance, increased connectivity, as seen in the use of psilocybin for depression treatment, might not be ideal for cognitive function but could be beneficial for social emotional function. It's essential to understand that connectivity and modularity are not the same, and changes in connectivity during demanding tasks are different from baseline connectivity. Future therapies, such as drug treatments, cognitive training, and transcranial magnetic stimulation, are likely to involve a combination of approaches to restore network balance and improve communication between brain regions.

    Exploring Neurological Solutions and Interventions

    Neurology is no longer just about describing neurological conditions in great detail, but also about finding solutions and interventions to help those affected. Dr. Mark Desposito provided insightful information about various neurological conditions such as working memory deficits, traumatic brain injury, concussion, Alzheimer's, and Parkinson's. He also shared practical interventions like mindfulness exercises to help improve brain function and health. The audience learned about the importance of advocating for one's own health and asking questions to healthcare providers. The discussion highlighted the importance of ongoing research and exploration to find new possibilities for alleviating neurological conditions and optimizing brain health for those who are already healthy. Overall, the conversation emphasized the importance of a proactive approach to neurological health and the potential for significant progress in the field.

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    GUEST SERIES | Dr. Matt Walker: The Science of Dreams, Nightmares & Lucid Dreaming

    GUEST SERIES | Dr. Matt Walker: The Science of Dreams, Nightmares & Lucid Dreaming
    This is episode 6 of a 6-part special series on sleep with Dr. Matthew Walker, Ph.D., a professor of neuroscience and psychology at the University of California, Berkeley and a leading public educator on sleep for mental and physical health, learning and human performance. In this episode, we discuss dreaming, including the biological mechanism of dreams, what dreams mean and their role in daytime life.  We explore how dreams can enhance our creativity and emotional well-being and help us resolve various challenges and dilemmas. We discuss how to remember and interpret your dreams and the abstractions/symbols frequently present in dreams. We also discuss nightmares and therapies to treat reoccurring nightmares. We explain what lucid dreaming is and if there are benefits or drawbacks to this type of dreaming. Dr. Walker also answers frequently asked audience questions and discusses snoring, body position, sleep supplements, sleep challenges due to aging, menopause, stopping racing thoughts, and how to fall back asleep if you wake in the middle of the night.  For show notes, including referenced articles and additional resources, please visit hubermanlab.com. Thank you to our sponsors AG1: https://drinkag1.com/huberman BetterHelp: https://betterhelp.com/huberman LMNT: https://drinklmnt.com/huberman Helix Sleep: https://helixsleep.com/huberman WHOOP: https://www.join.whoop.com/huberman Momentous: https://livemomentous.com/huberman Timestamps 00:00:00 Dreaming 00:01:13 Sponsors: BetterHelp, LMNT & Helix Sleep 00:05:06 Dreams & REM Sleep 00:12:20 Evolution of REM Sleep, Humans 00:17:13 REM Sleep & PGO Waves; Dreams & Brain Activity 00:24:26 Dreams, Images & Brain Activity; Sleepwalking & Sleep Talking 00:30:51 Sponsor: AG1 00:32:04 Dream Benefits, Creativity & Emotional Regulation; Challenge Resolution 00:41:27 Daily Experience vs. Dreaming, Emotions 00:45:08 Dream Interpretation & Freud, Dream Relevance 00:52:59 Abstractions, Symbols, Experience & Dreams; “Fuzzy Logic” 01:00:28 Sponsor: Whoop 01:01:36 Nightmares; Recurring Nightmares & Therapy 01:11:08 Targeted Memory Reactivation, Sounds & Nightmares 01:15:38 Odor, Paired Associations, Learning & Sleep 01:18:53 Fear Extinction, Memory & Sleep; Tool: Remembering Dreams 01:25:38 Lucid Dreaming, REM Sleep, Paralysis 01:32:33 Lucid Dreaming: Benefits? Unrestorative Sleep? 01:44:07 Improve Lucid Dreaming 01:49:30 Tool: Negative Rumination & Falling Asleep 01:53:41 Tools: Body Position, Snoring & Sleep Apnea; Mid-Night Waking & Alarm Clock 01:58:43 Sleep Banking?; Tool: Falling Back Asleep, Rest 02:05:53 Tool: Older Adults & Early Waking; Sleep Medications 02:11:25 Tool: Menopause & Sleep Disruption, Hot Flashes 02:15:06 Remembering Dreams & Impacts Sleep Quality? 02:18:32 Tool: Sleep Supplements 02:26:48 Tool: Most Important Tip for Sleep 02:30:56 Zero-Cost Support, Spotify & Apple Reviews, Sponsors, YouTube Feedback, Momentous, Social Media, Neural Network Newsletter Disclaimer

    Dr. Casey Means: Transform Your Health by Improving Metabolism, Hormone & Blood Sugar Regulation

    Dr. Casey Means: Transform Your Health by Improving Metabolism, Hormone & Blood Sugar Regulation
    In this episode, my guest is Dr. Casey Means, M.D., a physician trained at Stanford University School of Medicine, an expert on metabolic health and the author of the book, "Good Energy." We discuss how to leverage nutrition, exercise and environmental factors to enhance your metabolic health by improving mitochondrial function, hormone and blood sugar regulation.  We also explore how fasting, deliberate cold exposure and spending time in nature can impact metabolic health, how to control food cravings and how to assess your metabolic health using blood testing, continuous glucose monitors and other tools.  Metabolic dysfunction is a leading cause of chronic disease, obesity and reduced lifespan around the world. Conversely, improving your mitochondrial and metabolic health can positively affect your health span and longevity. Listeners of this episode will learn low- and zero-cost tools to improve their metabolic health, physical and mental well-being, body composition and target the root cause of various common diseases. For show notes, including referenced articles and additional resources, please visit hubermanlab.com. Thank you to our sponsors AG1: https://drinkag1.com/huberman Maui Nui Venison: https://mauinuivenison.com/huberman  Eight Sleep: https://eightsleep.com/huberman  AeroPress: https://aeropress.com/huberman  InsideTracker: https://insidetracker.com/huberman  Momentous: https://livemomentous.com/huberman Timestamps 00:00:00 Dr. Casey Means 00:02:18 Sponsors: Maui Nui, Eight Sleep & AeroPress 00:06:32 Metabolism, Metabolic Dysfunction, Medicinal Blindspot 00:14:17 Trifecta of Bad Energy 00:24:02 Western Living, United States, Specialization & Medicine 00:27:57 Insulin Resistance, Tool: Mitochondrial Capacity & Exercise 00:33:33 Sponsor: AG1 00:35:03 Tools: Walking & Glucose; Frequent Movement 00:44:25 Tools: Exercises to Improve Mitochondrial Capacity; Desk Treadmill 00:51:18 Soleus Push-Ups & Fidgeting, Non-Exercise Activity Thermogenesis (NEAT) 00:57:14 Sponsor: InsideTracker 00:58:21 Tool: Blood Test Biomarkers, Vital Signs & Mitochondrial Function 01:11:16 Navigate Medical System & Blood Tests, Consumer Lab Testing 01:16:46 Tool: Environmental Factors; Food, Life as a Process 01:21:58 Tool: Ultra-Processed vs. Real Food, Obesity, Soil & Micronutrients 01:32:03 Ultra-Processed Foods: Brain & Cellular Confusion 01:39:10 Tools: Control Cravings, GLP-1 Production, Microbiome Support 01:51:42 Ozempic, GLP-1 Analogs; Root Cause & Medicine 02:00:54 Tool: Deliberate Cold & Heat Exposure, Brown Fat 02:07:27 Tool: Intermittent Fasting & Metabolic Flexibility; Insulin Sensitivity 02:17:03 Tool: Continuous Glucose Monitors (CGMs) & Awareness, Glucose Spikes 02:24:34 Tool: CGMs, Glycemic Variability, Dawn Effect, Individuality 02:33:10 Sleep; Continuous Monitoring & Biomarkers 02:37:39 Mindset & Safety, Stress & Cell Danger Response 02:44:04 Tool: Being in Nature, Sunlight, Fear 02:54:44 Zero-Cost Support, Spotify & Apple Reviews, Sponsors, YouTube Feedback, Social Media, Neural Network Newsletter Disclaimer

    GUEST SERIES | Dr. Matt Walker: Improve Sleep to Boost Mood & Emotional Regulation

    GUEST SERIES | Dr. Matt Walker: Improve Sleep to Boost Mood & Emotional Regulation
    This is episode 5 of our 6-part special series on sleep with Dr. Matthew Walker, Ph.D., a professor of neuroscience and psychology at the University of California, Berkeley and the host of The Matt Walker Podcast. In this episode, we explain the connection between sleep and mood, emotional regulation and mental well-being.  We explain the role of rapid eye movement (REM) sleep in processing emotions and emotional memories and why sleep deprivation causes agitation, impulsivity and emotional reactivity.  We also discuss why sleep disruption is a hallmark feature of PTSD, anxiety, depression, suicidality, and other psychiatric conditions.  We explain protocols for improving REM sleep and other sleep phases in order to harness the therapeutic power of quality sleep to feel calmer and emotionally restored. This episode describes various actionable tools to improve sleep for those struggling with mental health or mood and those wanting to bolster their overall state and well-being.  The next episode in this special series explores dreams, including lucid dreaming, nightmares and dream interpretation. For show notes, including referenced articles and additional resources, please visit hubermanlab.com. Thank you to our sponsors AG1: https://drinkag1.com/huberman Eight Sleep: https://eightsleep.com/huberman LMNT: https://drinklmnt.com/huberman BetterHelp: https://betterhelp.com/huberman InsideTracker: https://insidetracker.com/huberman  Momentous: https://livemomentous.com/huberman Timestamps (00:00:00) Sleep & Mental Health (00:01:09) Sponsors: Eight Sleep, LMNT & BetterHelp (00:05:14) Emotions & Sleep, Amygdala (00:17:27) Emotional Memory & Sleep (00:25:48) “Overnight Therapy” & REM Sleep, Noradrenaline (00:29:13) Sponsor: AG1 (00:30:27) Sleep to “Remember & Forget”, Trauma; REM Sleep (00:38:27) Hinge Analogy; Motivation, Impulsivity & Addiction (00:47:08) Tool: Improve REM Sleep, Social Jet Lag, Alcohol & THC, Addiction (00:56:18) Sponsor: InsideTracker (00:57:23) Post-Traumatic Stress Disorder (PTSD) & REM Sleep (01:06:53) Noradrenaline & REM Sleep, PTSD & Prazosin (01:09:40) Addiction, Non-Sleep Deep Rest (NSDR); Liminal States (01:16:46) Anxiety & Sleep, Mood vs. Emotions (01:23:50) Deep Non-REM Sleep & Anxiety, Sleep Quality (01:28:51) Tool: Improve Deep Non-REM Sleep, Temperature; Alcohol (01:34:56) Suicidality & Sleep, Pattern Recognition; Nightmares (01:46:21) Depression, Anxiety & Time Context (01:51:24) Depression, Too Much Sleep?; REM Changes & Antidepressants (01:57:37) Sleep Deprivation & Depression (02:01:34) Tool: Circadian Misalignment & Mental Health, Chronotype (02:04:05) Tools: Daytime Light & Nighttime Darkness; “Junk Light” (02:13:04) Zero-Cost Support, Spotify & Apple Reviews, Sponsors, YouTube Feedback, Momentous, Social Media, Neural Network Newsletter Disclaimer

    AMA #17: Making Time for Fitness, Top Sleep Tools & Best Learning Strategies

    AMA #17: Making Time for Fitness, Top Sleep Tools & Best Learning Strategies
    Welcome to a preview of the 17th Ask Me Anything (AMA) episode, part of Huberman Lab Premium. Huberman Lab Premium was launched for two main reasons. First, it was launched in order to raise support for the main Huberman Lab podcast — which will continue to come out every Monday at zero-cost. Second, it was launched as a means to raise funds for important scientific research. A significant portion of proceeds from the Huberman Lab Premium subscription will fund human research (not animal models) selected by Dr. Huberman, with a dollar-for-dollar match from the Tiny Foundation. Read our Annual Letter 2023. If you're an existing Premium member, you can login to access the full episode. If you're not a member, you can join Huberman Lab Premium to enjoy exclusive content, including monthly Ask Me Anything (AMA) episodes, AMA transcripts, podcast episode transcripts, early access to live events and help advance human scientific research. Resources Foundational Fitness Protocol Timestamps (00:00:00) Introduction to AMA #17 (00:00:14) Exciting Announcement (00:02:16) Diving Into the Foundational Fitness Protocol (00:09:37) Flexibility in Your Fitness Routine (00:17:12) Optimizing Workout Times & Prioritizing Health (00:23:31) Closing Thoughts & Huberman Lab Premium Benefits In the full AMA episode, we discuss: Periodization & the Philosophy of Fitness Unlocking the Secrets of Sleep: Insights & Tools Chronotypes and Personalized Sleep Strategies The QQRT Formula: Quantity, Quality, Regularity & Timing of Sleep Exploring Naps & Non-Sleep Deep Rest (NSDR) Effective Learning & Note-Taking Strategies The Power of Teaching & Self-Testing in Learning Title Card Photo Credit: Mike Blabac Disclaimer

    Protocols to Strengthen & Pain Proof Your Back

    Protocols to Strengthen & Pain Proof Your Back
    In this episode, I explain how to strengthen and build a stable, pain-free back and how to reduce or eliminate existing back pain. I explain the anatomy and physiology of the spinal cord and vertebrae, intervertebral disks and nerve pathways, and the abdominal and back muscles that together can be leveraged to stabilize the back.  Then, I describe protocols: “McGill’s Big 3” exercises, a highly effective psoas stretch, abdominal stabilization, breathing techniques, and protocols to reinforce essential supports for the back, including the neck, pelvis, feet, and toes.  I also explain how you can reduce and potentially eliminate back pain and sciatica using a specific type of bar hang, “cobra push-ups,” medial-glute strengthening exercises, and more.  Back pain greatly impedes one’s ability to enjoy daily activities; this episode provides zero-cost, minimal time-investment protocols to improve your back strength and stability and allow you to move through life pain-free and with ease and mobility.  For show notes, including referenced articles and additional resources, please visit hubermanlab.com. Thank you to our sponsors AG1: https://drinkag1.com/huberman AeroPress: https://aeropress.com/huberman Joovv: https://joovv.com/huberman Waking Up: https://wakingup.com/huberman Plunge: https://plunge.com/huberman Momentous: https://livemomentous.com/huberman Timestamps (00:00:00) Back Health (00:03:47) Sponsors: AeroPress, Joovv & Waking Up (00:07:57) Back Anatomy: Spine, Vertebrae, Spinal Cord (00:12:07) Spinal Cord & Nerves; Herniated Discs (00:19:50) Build Strong Pain-Free Back; Bulging Discs (00:24:26) Back Pain & Professional Evaluation; Tool: Spine Self-Assessment  (00:34:58) Sponsor: AG1 (00:36:29) Tool: McGill Big 3 Exercises, Curl-Up (00:44:40) Tool: McGill Big 3 Exercises, Side Plank (00:53:13) Tool: McGill Big 3 Exercises, Bird Dog; Back Pain (01:04:10) Sponsor: Plunge (01:05:37) Tool: Back Pain & Oreo Analogy, Bar Hang (01:10:34) Time & Back Pain; Tool: Reversing Disc Herniation, Cobra Push-Ups  (01:21:28) Sciatica, Referred Pain, Herniated Disc (01:24:21) Tool: Improve Spine Stability, Strengthen Neck (01:29:23) Tools: Strengthen Feet, Toe Spreading (01:34:35) Tools: Belly Breathing; Stagger Stance (01:42:03) Tools: Relieve Low Back Pain, Medial Glute Activation; Rolled Towel (01:50:59) Tool: Psoas Stretching (01:57:00) Tool: Back Awareness; Strengthen & Pain-Proof Back (02:05:49) Zero-Cost Support, Spotify & Apple Reviews, Sponsors, YouTube Feedback, Momentous, Social Media, Neural Network Newsletter Disclaimer

    GUEST SERIES | Dr. Matt Walker: Using Sleep to Improve Learning, Creativity & Memory

    GUEST SERIES | Dr. Matt Walker: Using Sleep to Improve Learning, Creativity & Memory
    This is episode 4 of a 6-part special series on sleep with Dr. Matthew Walker, Ph.D., a professor of neuroscience and psychology at the University of California, Berkeley, and author of the best-selling book "Why We Sleep." In this episode, we discuss the relationship between sleep, learning and creativity.  We explain why and how sleep before and after a learning bout can improve memory and performance for both cognitive tasks and physical skills. We also discuss how to use time learning and sleep, how to use naps, non-sleep deep rest states, and caffeine to optimize learning, and the mechanisms for sleep and memory consolidation.  We also explain the critical role that sleep plays in creativity and one's ability to discover novel solutions to challenges and problems.  This episode is filled with actionable information on using sleep to enhance skill learning and improve memory and creativity.  The next episode in this guest series explains how sleep benefits emotional regulation and mental health.  For show notes, including referenced articles and additional resources, please visit hubermanlab.com. Thank you to our sponsors AG1: https://drinkag1.com/huberman Helix Sleep: https://helixsleep.com/huberman  WHOOP: https://join.whoop.com/huberman  Waking Up: https://wakingup.com/huberman  InsideTracker: https://insidetracker.com/huberman  Momentous: https://livemomentous.com/huberman Timestamps (00:00:00) Sleep & Learning (00:00:59) Sponsors: Helix Sleep, Whoop & Waking Up (00:05:48) Learning, Memory & Sleep (00:09:32) Memory & Sleep, “All-Nighters”, Hippocampus (00:13:46) Naps & Learning Capacity (00:16:59) Early School Start Times, Performance & Accidents (00:26:38) Medical Residency & Sleep Deprivation (00:29:35) Sponsor: AG1 (00:30:49) Tool: Sleep Before Learning; Cramming Effect (00:35:09) Tools: Caffeine; Timing Peak Learning; “Second Wind” (00:44:25) Memory Consolidation in Sleep (00:55:07) Sleepwalking & Talking; REM-Sleep Behavioral Disorder (01:00:16) REM Sleep Paralysis, Alcohol, Stress (01:07:41) Sponsor: InsideTracker (01:08:46) Skills, Motor Learning & Sleep (01:17:03) Tool: Timing Sleep & Learning, Skill Enhancement (01:20:00) Naps; Specificity & Memory Consolidation, Sleep Spindles (01:27:21) Sleep, Motor Learning & Athletes; Automaticity (01:34:10) Can Learning Improve Sleep? (01:39:13) Tool: Exercise to Improve Sleep; Performance, Injury & Motivation (01:44:38) Pillars of Health; Dieting & Sleep Deprivation (01:49:35) Performance & Poor Sleep, Belief Effects, “Orthosomnia” (01:57:03) “Overnight Alchemy”, Sleep & Novel Memory Linking (02:05:58) Sleep & Creativity (02:11:09) Tools: Waking & Technology; Naps; “Sleep on a Problem” (02:20:51) Creative Insight & Sleep (02:26:18) Zero-Cost Support, Spotify & Apple Reviews, Sponsors, YouTube Feedback, Momentous, Social Media, Neural Network Newsletter Disclaimer

    Dr. Bonnie Halpern-Felsher: Vaping, Alcohol Use & Other Risky Youth Behaviors

    Dr. Bonnie Halpern-Felsher: Vaping, Alcohol Use & Other Risky Youth Behaviors
    In this episode, my guest is Dr. Bonnie Halpern-Felsher, PhD, FSAHM. She is a professor of pediatrics and adolescent medicine and a developmental psychologist at Stanford University School of Medicine. Dr. Halpern-Felsher is a world expert in adolescent decision-making and risk-taking behaviors. She explains the huge increase in vaping (e-cigarettes) by young people. She explains why vaping nicotine and cannabis is particularly dangerous to the developing brain. We discuss the rise in vaping addiction, the unique social pressures and social media influences faced by youth that make quitting challenging, and interventions to aid them in quitting or reducing use. We also discuss the role of technology and social media. And, the use of alcohol, nicotine pouches, fentanyl, and other risky behaviors that adolescents face now. This episode should interest parents, teachers, coaches, teens, and families. It covers the current youth substance use landscape and also covers resources and ways to quit these addictive behaviors.  For show notes, including referenced articles and additional resources, please visit hubermanlab.com. Use Ask Huberman Lab, our new AI-powered platform, for a summary, clips, and insights from this episode. Thank you to our sponsors AG1: https://drinkag1.com/huberman Eight Sleep: https://eightsleep.com/huberman  Mateina: https://drinkmateina.com/huberman  LMNT: https://drinklmnt.com/huberman  Waking Up: https://wakingup.com/huberman Momentous: https://livemomentous.com/huberman Timestamps (00:00:00) Dr. Bonnie Halpern-Felsher (00:01:40) Sponsors: Eight Sleep, Mateina & LMNT  (00:05:38) Adolescence (00:09:19) Household Conflict, Parents; Smart Phones (00:12:35) Smart Phones & Social Media (00:18:25) Vaping, E-Cigarettes, Nicotine & Cannabis (00:23:46) Adolescent Nicotine Use: Marketing, Flavors (00:30:41) Sponsor: AG1 (00:32:13) Nicotine Initiation, Freebase vs. Salt-Based Nicotine, Concentration (00:41:35) Addiction & Withdrawal; E-Cigarette Access (00:48:48) Vaping Health Hazards, Aldehydes, Flavors (00:56:32) Sponsor: Waking Up (00:57:48) “Just Say No”, Adolescent Defiance (01:04:21) Cannabis & Potency, Blunts, E-Cigarette Combinations (01:10:30) Psychosis, THC & Adolescence (01:14:11) Quitting Nicotine & Cannabis; Physical & Social Withdrawal Symptoms (01:23:05) Social Pressures, Quitting Vaping, Environment Concerns (01:30:08) Teen Activities, Social Media, Autonomy (01:36:28) Risky Behaviors, Alcohol, Driving, Sexual Behavior (01:43:27) International E-Cigarette Use, Regulation (01:46:10) Nicotine Pouches, Health Risks; Tolerance (01:53:25) Tools: Vaping Interventions, Decision Making, Harm Reduction (02:02:37) Fentanyl, Drug Testing, Recreational Drug Use (02:13:45) Tool: Organic Conversations & Risky Behavior (02:17:20) Long-Term Goals & Teens; Vaping, Pornography & Teens (02:24:08) Mental Health Crisis & Substance Use (02:29:11) Zero-Cost Support, Spotify & Apple Reviews, Sponsors, YouTube Feedback, Momentous, Social Media, Neural Network Newsletter Disclaimer

    LIVE EVENT Q&A: Dr. Andrew Huberman at the Sydney Opera House

    LIVE EVENT Q&A: Dr. Andrew Huberman at the Sydney Opera House
    Recently I had the pleasure of hosting a live event in Sydney, Australia. This event was part of a lecture series called The Brain Body Contract. My favorite part of the evening was the question and answer period, where I had the opportunity to answer questions from the attendees of each event. Included here is the Q&A from our event at the Sydney Opera House. Sign up to get notified about future events: https://www.hubermanlab.com/events Thank you to our sponsors AG1: https://drinkag1.com/huberman Eight Sleep: https://eightsleep.com/huberman Timestamps (00:00:00) Introduction (00:00:15) Live Event Recap: The Brain Body Contract (00:00:36) Sponsor: AG1 & Eight Sleep (00:02:50) The Power of Mindset on Stress (00:05:23) David Goggins: A Case Study in Resilience (00:09:59) Exploring Time Perception & Frame Rate (00:18:20) Jet Lag Protocol: Adjusting to New Time Zones (00:26:44) The Science of Neuroplasticity (00:26:49) The Transformative Power of Psychedelics (00:29:26) Exploring Psilocybin & MDMA: Personal Experiences & Insights (00:36:12) The Science of Sleep: How Temperature Affects It (00:39:38) Understanding Stress Response & Habituation (00:41:20) Personal Anecdotes (00:47:00) Finding Your Passion: Advice for the Youth (00:51:20) Closing Thoughts & Gratitude Disclaimer

    GUEST SERIES | Dr. Matt Walker: How to Structure Your Sleep, Use Naps & Time Caffeine

    GUEST SERIES | Dr. Matt Walker: How to Structure Your Sleep, Use Naps & Time Caffeine
    This is episode 3 of a 6-part special series on sleep with Dr. Matthew Walker, Ph.D., a professor of neuroscience and psychology at the University of California, Berkeley, and leading public educator about the role of sleep in health, disease and performance.  We explain how our sleep architecture changes as we age. We also cover how childhood development and aging affect sleep biology and needs. We also discuss whether polyphasic sleep (multiple short sleep periods) is beneficial.  Then, we discuss naps, including their positive benefits, individual variability, those who should not nap, and alternative rest states like non-sleep deep rest. Dr. Walker shares protocols to optimize nap duration, timing and effectiveness. We also explore the effects of caffeine on sleep and other health aspects, as well as the optimal timing for caffeine intake. This episode describes many actionable science-based tools for optimizing sleep, naps and caffeine use for better health and performance. The next episode in this special series explores the relationship between sleep, memory, and creativity. For show notes, including referenced articles and additional resources, please visit hubermanlab.com. Thank you to our sponsors AG1: https://drinkag1.com/huberman BetterHelp: https://betterhelp.com/huberman LMNT: https://drinklmnt.com/huberman Waking Up: https://wakingup.com/huberman Eight Sleep: https://eightsleep.com/huberman Momentous: https://livemomentous.com/huberman Timestamps (00:00:00) Sleep Structure (00:01:29) Sponsors: BetterHelp, LMNT & Waking Up (00:05:42) Sleep Phases & Lifespan (00:11:58) Sleep Stages & Lifespan, Sleep Paralysis & Animals (00:20:19) Adults & Biphasic Sleep, Modern Society (00:25:14) Chronotype, Circadian Rhythms & Biological Flexibility (00:29:07) Genetics & Chronotype (00:31:42) Sponsor: AG1 (00:32:55) Biphasic Sleep, Adults; Body Position & Sleepiness (00:40:09) Naps, Positive Benefits, Nighttime Insomnia (00:49:38) Tool: Optimal Nap: Duration & Timing; Grogginess (00:58:15) Nap Capacity, “Liminal” States & NSDR (01:07:37) NASA Nap Culture, Power Naps (01:11:49) Sponsor: Eight Sleep (01:12:50) Tools: Nap Timing, “Fragile” Nighttime Sleep; On-Off-On Protocol (01:18:57) Avoiding Naps: Insomnia, Aging & Sleep Quality Decline (01:28:20) Caffeine, “Nappuccino”; Hot Drinks (01:38:28) Adenosine Clearance, Sleep  (01:43:10) Tool: Delaying Caffeine, Afternoon Crash, Sleep Quality (01:49:06) Caffeine, Health, Antioxidants; Caffeine Tolerance & Alcohol (01:56:54) Tool: Nap “Enhancements”, Caffeine, Light & Face Washing (02:04:33) Polyphasic Sleep, Adverse Effects (02:12:43) Sleep Deprivation & Car Crashes; Polyphasic Sleep (02:16:49) Zero-Cost Support, Spotify & Apple Reviews, Sponsors, YouTube Feedback, Momentous, Social Media, Neural Network Newsletter Disclaimer