Why Rituals Exist Everywhere & The Exercise Paradox - SYSK Choice

2033.217 - 2059.384 Daniel E. Lieberman

Life is really just about, you know, food in, babies out, right? And the reason we eat food is for nutrients and calories, and calories is a unit of energy. So until recently, people struggled to get enough calories. It takes, you know, about 2,000 to 3,000 calories to run a human body for a given day. And if you're a farmer or a hunter-gatherer, getting those calories is not easy.