AMA #18: Cold Therapy Advice, Skin Health Tips, Motivation, Learning Strategies & More
Dr. Huberman provides actionable insights from an AMA, covering skin health, cold therapy, self-motivation, and REM sleep. He also discusses learning strategies for students, Shilajit's impact on testosterone, writing processes, and resources for addiction recovery.
Deep Dive Analysis
9 Topic Outline
Huberman Lab Premium Philanthropy and Research Initiatives
Strategies for Repairing Thinning Skin as We Age
Guidelines and Safety for Deliberate Cold Exposure
Effective Self-Motivation Strategies for New Routines
Methods to Increase Rapid Eye Movement (REM) Sleep
School-Based Strategies to Enhance Student Learning
Analysis of Shilajit's Effects on Testosterone and Health
Strategies for Overcoming Obstacles in Writing
Resources for Addiction and Recovery
9 Key Concepts
Mineral-based Sunscreens
Sunscreens with active ingredients like zinc oxide or titanium dioxide (up to 25%) are generally considered safe and work by creating a physical barrier against UV rays, making them a preferred choice for frequent use.
Chemical-based Sunscreens
These sunscreens contain chemicals like oxybenzene that absorb or reflect UV rays. While effective, some studies suggest that large amounts can be endocrine disruptors, leading to ongoing controversy regarding their long-term safety.
Retinoids
Prescription medications that improve the skin's collagen composition from the inside out, which can reduce skin cancer risk and enhance a youthful appearance. However, they significantly increase sun sensitivity, requiring strict sun avoidance during use.
State Shift (Cold Exposure)
The immediate and lasting change in mental state (increased alertness, improved mood) induced by deliberate cold exposure. This effect is observed during and up to an hour or more after exposure, regardless of debates about metabolic changes or dopamine duration.
Closed-Loop Motivation System
An internal method of self-accountability where individuals set goals, track their progress, and consider the completion of the work itself as the primary reward. This approach fosters sustained motivation without relying on external validation or pressure from others.
Rapid Eye Movement (REM) Sleep
A crucial sleep stage, enriched towards the end of the night, characterized by vivid, emotionally intense dreams and a healthy body paralysis (sleep atonia). It is essential for learning, memory consolidation, and emotional processing, acting as a form of trauma therapy.
Non-Sleep Deep Rest (NSDR)
Protocols, such as Yoga Nidra, that involve maintaining complete physical stillness while keeping the mind active. These are hypothesized to mimic the benefits of REM-like rest for improving focus and learning, and are available as guided audio sessions.
Micro Gaps (Learning)
Brief, random pauses (e.g., 10 seconds) introduced during learning sessions that allow the brain to rapidly and subconsciously replay learned information at 20-30 times the normal speed. This process significantly boosts memory encoding and increases the effective number of repetitions for learning.
Addiction
A condition characterized by a progressive narrowing of activities or substances that provide pleasure, often leading to significant disruption in one's life. It is understood as a disruption in neurochemical circuit regulation within the brain, rather than solely a lack of willpower.
7 Questions Answered
Thinning skin can be addressed through consistent sun protection, collagen protein ingestion (5-30g/day), regular red light exposure (10-15 min/day), prescription retinoids, laser resurfacing, and maintaining a low-inflammatory diet.
The water should be cold enough to cause discomfort but allow safe immersion for 1-3 minutes, typically between 45-50 degrees Fahrenheit, with subjective feel being a key guide to finding the minimum effective dose.
Effective strategies include creating an internal contract with yourself, avoiding public announcements of goals, making the effort itself the reward, and eliminating distractions like your phone by placing it out of reach.
To increase REM sleep, add 10-30 minutes to your sleep schedule, spike adrenaline early in the day (exercise/cold exposure), or use non-sleep deep rest (NSDR) protocols. Insufficient REM sleep can impair learning, memory consolidation, and emotional processing.
Schools can improve learning capacity by ensuring students get enough sleep, incorporating short meditation or NSDR sessions before learning, introducing micro gaps during instruction, and integrating physical activity before academic tasks.
Shilajit, a mineral pitch, has shown some limited evidence for small increases in follicle-stimulating hormone (FSH) and testosterone, as well as minor improvements in sperm quality and LDL reduction, but its overall impact on testosterone is considered low compared to behavioral interventions.
Information on addiction and recovery, including neurobiological mechanisms and treatment approaches, can be found on hubermanlab.com by searching 'addiction,' particularly referencing an episode with Dr. Anna Lembke, and also by exploring zero-cost 12-step communities.
30 Actionable Insights
1. Self-Contract for Motivation
Write down your goals and sign off each time you complete a task, making the work itself the reward to build sustained internal motivation and accountability, which is more effective than seeking external validation.
2. Remove Distractions for Focus
Put your phone away (turned off, in another room, or a dedicated box) when performing focused work to eliminate intrusions and significantly improve work output and concentration.
3. Seek Addiction Recovery Resources
Access zero-cost resources like 12-step communities and educational materials such as Dr. Anna Lembke’s work, including her book ‘Dopamine Nation,’ to understand addiction as a neurochemical circuit disruption and pursue recovery.
4. Incorporate Micro Gaps for Learning
Introduce brief (e.g., 10-second) micro-gaps randomly throughout learning sessions (1-10 times per hour) to allow the brain to rapidly replay and rehearse information subconsciously, increasing repetitions and improving learning.
5. Start Learning with Meditation/NSDR
Begin learning sessions with a 3-5 minute meditation or Non-Sleep Deep Rest (NSDR) protocol to significantly improve working memory, overall memory, focus, and decrease stress.
6. Physical Activity Before Learning
Engage in physical activity, especially cardiovascular training, immediately before learning sessions to facilitate memory encoding and make new information more readily accessible.
7. Prioritize Sufficient Sleep for Learning
Ensure adequate sleep for students by turning off phones and iPads at night and considering later school start times, as sleep is crucial for neuroplasticity, focused attention, and the rewiring of neural connections essential for learning.
8. Optimize Sleep for Testosterone
Increase sleep duration by 30-60 minutes each night, particularly focusing on increasing REM sleep, to significantly boost testosterone levels.
9. Early-Day Adrenaline for REM Sleep
Promote more rapid eye movement (REM) sleep by inducing an early-day adrenaline surge through morning exercise and/or deliberate cold exposure.
10. Increase REM Sleep Duration
Add 10-30 minutes to your sleep schedule, particularly by sleeping in longer in the morning, as one of the best ways to get more rapid eye movement (REM) sleep.
11. Use NSDR for REM-like Rest
Utilize 10-30 minute Non-Sleep Deep Rest (NSDR) protocols, ideally in the morning, to achieve REM-like rest and potentially increase overall REM sleep.
12. Avoid REM Sleep Disruptors
Avoid caffeine late in the day and alcohol, as both can significantly disrupt rapid eye movement (REM) sleep.
13. Maintain Optimal Body Fat Percentage
Ensure your body fat percentage is neither too high nor too low to support healthy hormone profiles and testosterone levels, as both extremes can disrupt them.
14. Foundational Nutrition and Exercise
Prioritize proper nutrition, consistent exercise (both resistance and cardiovascular training without overtraining), and adequate sleep before considering supplements for testosterone optimization.
15. Practice Cold Exposure Safely
Prioritize safety during cold exposure: never perform breath work (especially exhaling) before entering cold water, ideally have a monitor present, and avoid intentional submersion or emphasizing exhales while in the water to prevent blackouts or cardiovascular shock.
16. Deliberate Cold Exposure Protocol
Engage in deliberate cold exposure (cold showers/plunges) for 1-3 minutes (or 30 seconds if new) at a temperature (e.g., 45-50°F) that is uncomfortable but safe, to shift your mental state and increase alertness.
17. Sauna Heat Exposure Protocol
Use a traditional sauna at a temperature that is uncomfortably hot but safe (e.g., 210°F for 10-20 minutes maximum) to avoid overheating the brain.
18. Protect Skin from Sun Damage
Protect skin from excessive sun exposure using physical barriers (hats, long sleeves) or mineral-based sunscreens (zinc oxide, titanium dioxide up to 25%), especially during high UV index times, to prevent rapid skin aging and reduce skin cancer risk.
19. Hydrate Skin with Moisturizer
Regularly apply a high-quality, non-fragranced moisturizer to the skin to support hydration and improve its appearance.
20. Adopt Low-Inflammatory Diet for Skin
Adopt a low-inflammatory diet by limiting fried and highly processed foods, and ensure adequate intake of essential fatty acids (from supplements or fatty fish), fruits, vegetables, and fiber to support healthy skin internally.
21. Ingest Collagen for Skin Elasticity
Ingest 5-30 grams of collagen protein daily, often with vitamin C, to moderately improve skin elasticity, smoothness, and plumpness.
22. Utilize Red Light for Skin Appearance
Use red light or near-infrared light panels for 10-15 minutes per day, at least five days per week for several months, to moderately improve skin appearance.
23. Consult Dermatologist for Retinoids
Consult a qualified dermatologist about prescription retinoids to improve collagen composition and skin appearance from the inside out, being mindful to avoid sun exposure due to increased sensitivity.
24. Consider Laser Resurfacing for Skin
Consider laser resurfacing performed by a qualified dermatologist or derm oncologist to remove superficial skin layers, reduce cancer risk, and dramatically improve skin appearance, while adhering strictly to post-procedure sun avoidance.
25. Discuss Optimal Learning Protocols
Engage in discussions about optimal learning protocols to understand individual attention thresholds and ensure focused learning, as unfocused effort is unproductive.
26. Adopt ‘Fast and Careful’ Work Ethic
Adopt a ‘go as fast as you carefully can’ approach to tasks like writing, balancing urgency with precision to optimize output.
27. Commit to Uninterrupted Work Blocks
Commit to uninterrupted work blocks, resisting the urge to get up until a set timer goes off, to build focus and momentum, making the work itself more enjoyable and productive.
28. Be Cautious Announcing Goals
Be cautious about announcing new routine goals to others, as external support can sometimes diminish internal motivation; instead, focus on internal accountability unless specific external pressure is genuinely needed.
29. Implement High-Stakes Incentives
Implement ‘fear setting’ or high-stakes incentives (e.g., a financial penalty to another person) to overcome procrastination and ensure task completion, especially when internal motivation is insufficient.
30. Shilaji: Low Priority Testosterone Supplement
Consider Shilaji a low-priority supplement for testosterone increase; prioritize behavioral interventions (sleep, exercise, nutrition) and other supplements like Tongkat Ali, which have more supporting data.
3 Key Quotes
The work itself should become the reward.
Andrew Huberman
I go as fast as I carefully can.
Andrew Huberman
Addiction is a progressive narrowing of the things that bring you pleasure in ways that can be very disruptive for your life.
Andrew Huberman
5 Protocols
Deliberate Cold Exposure (Huberman's Approach)
Andrew Huberman- Get into water that is cold enough to cause discomfort but is safe.
- Breathe quickly initially, then allow clear thinking to return after about 20 seconds.
- Stay in until you adapt, typically for 1-3 minutes (or 30 seconds if new).
- Exit the cold water, noting the improved feeling afterward.
Cold Exposure Safety Guidelines
Andrew Huberman- Never perform breathwork, especially emphasizing exhales, immediately before entering very cold water.
- Ideally, have another person present to monitor you if using a cold plunge.
- Do not intentionally submerge your head or hold your breath.
- Be prepared to adjust quickly and exit if you feel you are in danger or experiencing tissue/cardiovascular damage.
Self-Motivation for New Routines (Huberman's Method)
Andrew Huberman- Avoid announcing your goals to others unless they provide strict accountability.
- Write down your specific goal on paper.
- Sign a 'contract' with yourself each time you complete a block of work or a daily task.
- Consider the act of completing the work and signing off as the primary reward, fostering internal motivation.
- Remove distractions by placing your phone in another room or a dedicated box during work periods.
- If needed, create high-stakes incentives for yourself (e.g., a financial penalty) to ensure accountability, but aim to internalize motivation over time.
Increasing Rapid Eye Movement (REM) Sleep
Andrew Huberman- Add 10-30 minutes to your sleep schedule, ideally by allowing yourself to sleep in longer in the morning.
- Induce a surge of epinephrine/adrenaline early in the day through exercise and/or deliberate cold exposure.
- Perform a 10-30 minute Non-Sleep Deep Rest (NSDR) protocol during the day.
- Avoid caffeine late in the day and alcohol, as both can significantly disrupt REM sleep.
School Strategies for Enhanced Learning (Huberman's Recommendations)
Andrew Huberman- Prioritize sufficient sleep for students, potentially by adjusting school start times or encouraging strict phone-free nights.
- Begin learning sessions with 3-5 minutes of quiet, focused breathing or non-sleep deep rest (NSDR) to improve working memory and focus.
- Introduce brief, random 'micro gaps' (e.g., 10 seconds) during information delivery to facilitate subconscious rapid replay and memory encoding.
- Integrate regular physical activity, especially cardiovascular training, with academic learning done immediately after to enhance memory encoding.
- Educate students and teachers about optimal learning protocols and individual attention thresholds.