Q: I heard about Wim Hof and cryotherapy this past week. Being the fitness enthusiast I am, is it something I should investigate?

A: If you’re intrigued by hyperventilating until you become lightheaded and tingle in places you didn’t know could tingle, why not? Wim Hof’s method enabled him to swim more than 50m under an ice shelf in the Arctic, so before we judge, let’s just breathe.

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