Cryotherapy... An "Ice Bath On Steroids"?

26 Apr 2025 · 31 min
31:21

Ben Greenfield talks with Maria of London Kryo about cryotherapy versus cold-water immersion. Cryotherapy chambers hit extreme cold to trigger vasoconstriction and a fight-or-flight response, working better for inflammation and sleep than dunking in ice water, which builds immune resilience instead.

Questions this video answers

Statements cite around -110°C to -130°C (Maria also mentions '100°C' in context; conversationally presented as -110 to -130°C).

A skin temperature decrease of about 15°C is stated as required to elicit the desired cryotherapy response.

About 2–3 minutes; Maria and Ben repeatedly cite ~3 minutes as the typical 'magic' duration.

The transcript claims water removes heat ~23.5 times faster than air.

Speakers reference studies using temperatures around 40–50°F (≈4–10°C); Ben also mentions 33°F (≈0.6°C) anecdotally for his protocol.

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