There’s emerging evidence of the health benefits of raising your body temperature—you know, getting sweaty. Author Bill Gifford’s book makes the case.
The benefits of heat date back to early human history, when our ability to perspire meant we could hunt during times when other predators had to stay cool in the shade. Today, there’s science that indicates spending time in saunas reduces the risk of heart attack and Alzheimer’s disease. Exposure to high heat also releases proteins that can help repair cells. And then there are the findings that show that heat therapies like hot yoga may actually provide a more powerful remedy for depression than antidepressants. Bill Gifford is joining us to make the case for heat.
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- Bill Gifford is co-author of the book Outlive: The Science and Art of Longevity, and a contributor to Outside magazine. His new book is Hotwired: How the Hidden Power of Heat Makes Us Stronger.
Airdate: Apr. 15, 2026