Beyond weight, the trouble with rarely feeling real hunger is that our bodies evolved to leverage lean times for good. Lean times are, in fact, a necessary state for optimizing long-term health. This is because a hungry human body undergoes a sort of cellular natural selection. We fully metabolize our last meal after 12 to 16 hours, depending on how much we ate. That’s when our body releases testosterone, adrenaline, and cortisol: a symphony of hormones that act as signals to burn stored tissues for energy. But we don’t burn our finest tissues. “We get rid of a lot of dead and damaged cells,”
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