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Huberman Lab

AMA #7: Cold Exposure, Maximizing REM Sleep & My Next Scientific Studies

May 31, 2023
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22:20

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Quick takeaways

  • Deliberate cold exposure for short durations does not directly make one more susceptible to getting sick, but being in cold, dry environments can increase vulnerability to infections.
  • Regular and correct deliberate cold exposure over time can increase immune system markers, but chronic elevation of certain molecules can suppress the immune response.

Deep dives

Effects of Deliberate Cold Exposure on Getting Sick

Deliberate cold exposure for short durations does not directly make one more susceptible to getting sick. After a brief period of deliberate cold exposure, as long as you warm up afterwards, the exposure itself does not enhance the likelihood of getting sick. However, being in cold, dry environments can increase vulnerability to viral and bacterial infections, as cold, dry air can thin the mucosal lining of the nose and mouth, making them more susceptible to infections.

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