Ross and Carrie listen up for some rapid-fire science of the human body. They learn some of Wim Hof’s most amazing accomplishments, get a quick overview of the autonomic nervous system, and find out exactly what percentage of human disease “is inflammation.” (Hint: the answer doesn’t make much sense.) Plus, they each show off their lung capacity by holding their breath exactly as long as Wim Hof, give or take five minutes.

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