Have you ever felt embarrassed by the need to carry a towel, or even a fresh shirt, with you during the most sweltering months of the year? You shouldn’t. Sweating is one of the most remarkable ways our bodies protect themselves when the mercury heads north.

With summer temperatures spiking around the world as the sweat-filled Olympic Games begin in Paris, we’re joined by Sarah Everts, a Smithsonian contributor and the author a marvelous book called The Joy of Sweat: The Strange Science of Perspiration. She explains why the body’s thermostat is so ingenious, and how it cools athletes—and the rest of us. Plus: A series of snack-sized anecdotes about the Olympics!

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Read Smithsonian magazine's coverage of the Olympics, past and present, here, here, here, and here.

There’s More to That is a production of Smithsonian magazine and PRX Productions.

From the magazine, our team is Chris Klimek, Debra Rosenberg and Brian Wolly.

From PRX, our team is Jessica Miller, Adriana Rosas Rivera, Genevieve Sponsler, Rye Dorsey, and Edwin Ochoa. The Executive Producer of PRX Productions is Jocelyn Gonzales.

Fact-checking by Stephanie Abramson.

Episode artwork by Emily Lankiewicz 

Music by APM Music.