642: The science of sweat, saunas & stress | best-selling author Bill Gifford

0:03What if one of the most powerful tools for your health has been hiding in plain sight?

0:08And most of us have been actually avoiding it.

0:11Today's guest is Bill Gifford, a veteran science journalist, author of Spring Chicken, a New York Times best-selling author on longevity, and co-author of Outlive.

0:20His 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.

0:34Bill spent his career translating cutting-edge science for real people, writing for Wired Bloomberg, Business Week, Scientific American Outside, and more.

0:43In this episode, we get into why sweating is one of humanity's greatest evolutionary superpowers and what we lose when we live in perfectly climate-controlled comfort 24-7.

0:54We discuss the Finnish sauna tradition, what the science says about minimum effective dose, and why heat exposure may be one of the most underrated tools for cardiovascular and mental health.