Bill Gifford

speaker

328 appearances 1 recordings 1 series first heard Mar 2026 last heard 22 Mar

Bill Gifford’s voice in public audio — every appearance, attributed to the second.

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Recordings per month over the last 12 months — 1 in all, peaking in Mar 2026 with 1.

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The mindbodygreen Podcast · 642: The science of sweat, saunas & stress | best-selling author Bill Gifford · 22 Mar 2026 podcast

They won't finish.

And what is heat training?

So think about like, I mean, you're in an interesting climate, but in most of the country, think about how like an 85-degree day feels in May and

versus how that same temperature might feel in August, right?

In May, it's brutal and you're sweating like crazy.

In August, you're like, oh, what a nice day.

And so that's because you've become heat adapted over the summer months just by being outside.

And so what happens is your response to the heat changes.

So initially you might have that high heart rate.

You might be in zone four on an easy exercise.

But then you do that four or five days out of the week for a couple weeks, and then maybe your heart rate won't be quite as high.

on the same kind of day.

So you become adapted.

So your plasma volume expands, right?

With heated adaptation, you begin to sweat sooner and you sweat more and your sweat is less salty.

So your sweat evaporates better.

So your body's kind of tuning up its cooling system.

And at the same time, in addition to your plasma volume expanding, you start making more red blood cells, your hemoglobin increases, so you have more oxygen carrying capacity.

So while you're walking along the beach in Miami on that hot day, you're actually doing the same thing as altitude training.

You're improving your aerobic capacity.

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