Cold Exposure

Expert Positions

Andrew Huberman

Strongly Recommends

Peter Attia

Recommends for Mood, Cautious on Longevity

Rhonda Patrick

Strongly Recommends

Bryan Johnson

Mentions, Not Core Protocol

Mark Hyman

Recommends as Hormetic Stressor

The Verdict

4 of 5 experts actively recommend deliberate cold exposure. Huberman is the strongest advocate with a dedicated episode and repeated coverage across dozens of videos. Patrick provides the deepest mechanistic analysis, citing norepinephrine, brown fat activation, and mitochondrial biogenesis. Attia personally practices cold plunges (as part of his sauna routine) but explicitly notes the longevity data is weaker than for sauna. Hyman endorses cold exposure as a hormetic stressor for mitochondrial health and inflammation. Johnson mentions cryotherapy in the context of his biohacking protocols but has no dedicated cold exposure coverage.