What Really Happens When You Fast?

In Silicon Valley, where optimizing physical and mental health is paramount to achieving professional success, some people will do anything to get ahead — including giving up food for days a time. Intermittent fasting is hot, largely because of its promise to promote rapid weight loss and, as one Bay Area company called WeFast puts it, create “an enhanced sense of mental agility.”

But we live in a world where dangerous fasting behaviors are considered an epidemic medical problem, and it’s not entirely clear that fasting can deliver on its promises — let alone in a safe way.

Excerpted from Inverse

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