Unlearn Protocols

Unlearn Protocols

How to Practice Cold Exposure Safely for Metabolism, Immunity, and Recovery

How Cold Exposure Influences Physiology, Metabolism, and Stress Adaptation

Kendall Toerner's avatar
Kendall Toerner
Mar 26, 2026
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Cold exposure is not about toughness, shock, or forcing the body into stress.

When used correctly, cold is a seasonal signal. It replaces what strong sunlight provides in summer and helps maintain mitochondrial efficiency when light is weak.

This article builds directly on the idea that cold is the yang to sunlight. In wint…

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