“Sweating is our superpower," explains Bill Gifford.
Gifford, a veteran science journalist and author of Spring Chicken, a New York Times bestseller on longevity. His latest book, Hotwired: How the Hidden Power of Heat Makes Us Stronger, dives deep into the emerging science of heat, sweating, and what happens when we stop running from discomfort.
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00:00 — Sweating as an evolutionary superpower
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03:00 — The science of ancient heat rituals
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05:45 — How long & how hot?
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07:55 — The dehydration trap
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09:52 — All about Finnish sauna culture
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12:50 — Heat acclimation training
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16:41 — Elite athletes & what they can teach us
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18:50 — The science on hot-cold contrast
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21:49 — The case against cold plunging
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29:08 — Sauna as a social ritual
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33:20 — Heat as a mental health tool
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36:34 — A beginner's guide to safe heat exposure
Referenced in the episode:
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