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Essentials: Supercharge Exercise Performance & Recovery with Cooling

Mar 20, 2025 33m 19s 12 insights
In this Huberman Lab Essentials episode, I discuss the critical role of temperature regulation in optimizing athletic and physical performance. I explain why overheating can hinder performance and endurance and how techniques like palmar cooling can help extend physical effort by aiding temperature regulation. I also highlight how specific body areas, such as the palms and face, are key targets for regulating temperature, allowing heat to dissipate efficiently. Lastly, I discuss how temperature can support training recovery while cautioning that extreme cold, such as ice baths immediately after training, can block adaptations. Read the episode show notes at hubermanlab.com. Huberman Lab Essentials are short episodes focused on essential science and protocol takeaways from past full-length Huberman Lab episodes. Watch or listen to the full-length episode at ⁠⁠⁠hubermanlab.com⁠⁠⁠.
Actionable Insights

1. Targeted Cooling for Performance

During or between sets of exercise, cool your palms, bottoms of feet, or face with cool (not freezing) water or a cold object for 10-30 seconds, extending to 30 seconds-1 minute if needed, to dump heat and significantly increase work output (sets, reps, endurance). This works because these glabrous skin areas are highly efficient at transferring heat out of the body.

2. Targeted Cooling for Recovery

After a workout, cool your palms, bottoms of feet, or face to return your body to its resting temperature range as quickly as possible. This specific cooling method supports faster muscle and tendon recovery without blocking muscle growth, unlike full-body ice baths.

3. Prioritize Foundational Health

Consistently ensure you get a good night’s sleep, stay properly hydrated, and are well-nourished, as these are foundational elements that allow you to perform at your current ability.

4. Avoid Post-Workout Ice Baths

Do not immerse your entire body in an ice bath or cold shower immediately after strength training, as this can block inflammation pathways (like mTOR) essential for muscle hypertrophy and growth.

5. DIY Workout Cooling Tool

To cool hands during a workout, use a frozen juice can or a very cold can of soda, passing it back and forth between your two hands. Ensure it’s not so cold that it causes vasoconstriction, which would prevent effective heat transfer.

6. Warm Face in Cold Weather

If you tend to get cold outdoors in winter or fall, warming your face is the most important action you can take to help warm your body, leveraging the glabrous skin on the face.

7. Cautious NSAID Use for Performance

Think carefully about using non-steroid anti-inflammatory drugs (NSAIDs) before training sessions solely for performance enhancement. While they can lower body temperature, they may have adverse effects on the liver and kidneys, and their effects are harder to modulate than external cooling.

8. Utilize Comprehensive Blood Testing

Engage in comprehensive blood testing to get a key snapshot of your entire bodily health, including heart, hormone, immune, and nutrient levels. Many things related to your mental and physical health can only be detected in a blood test.

9. Optimize Sleep Environment Temperature

Regulate your sleeping environment temperature to ensure it drops 1-3 degrees to fall and stay deeply asleep, and increases 1-3 degrees to wake up refreshed. Body temperature changes are critical for optimal sleep cycles.

10. Incorporate AG1 Daily

Consider taking AG1 daily, a vitamin, mineral, probiotic drink that also includes prebiotics and adaptogens. It is suggested to improve all aspects of mental health, physical health, and performance.

11. Consider Eight Sleep Mattress Cover

Explore using a smart mattress cover like Eight Sleep to automatically regulate your bed’s temperature throughout the night according to your unique needs. This can optimize sleep quality by ensuring the correct temperature for falling asleep, staying asleep, and waking up.

12. Explore Function Health Testing

Explore Function Health for advanced lab tests (over 100 biomarkers) and insights from top doctors to understand and improve your physical and mental health. This service provides a comprehensive snapshot of your bodily health.