08/01/25

Are Cold Plunges Actually Good For You?

12:07 minutes

Cuban man swims in an ice hole in winter
Credit: Shutterstock

If social media and certain influential podcast hosts are to be believed, cold plunges can do everything from boosting your immune system to reducing inflammation to acting as an antidote for depression. But what does the science say?

Joining Host Flora Lichtman to throw at least a few drops of cold water on this science of plunging is biologist François Haman, who studies human performance and cold exposure.

Segment Guests

François Haman

Dr. François Haman is a biologist at the University of Ottawa who studies how the human body responds to extreme environments.

Segment Transcript

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Meet the Producers and Host

About Dee Peterschmidt

Dee Peterschmidt is a producer, host of the podcast Universe of Art, and composes music for Science Friday’s podcasts. Their D&D character is a clumsy bard named Chip Chap Chopman.

About Flora Lichtman

Flora Lichtman is a host of Science Friday. In a previous life, she lived on a research ship where apertivi were served on the top deck, hoisted there via pulley by the ship’s chef.

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