Alexander Ehrlich

“Why, for example, do people gorge on high-calorie food that is doing little good to their bodies? Today’s affluent societies are in the throes of a plague of obesity, which is rapidly spreading to developing countries. It’s a puzzle why we binge on the sweetest and greasiest food we can find, until we consider the eating habits of our forager forebears. In the savannahs and forests they inhabited, high-calorie sweets were extremely rare and food in general was in short supply. A typical forager 30,000 years ago had access to only one type of sweet food – ripe fruit. If a Stone Age woman came across a tree groaning with figs, the most sensible thing to do was to eat as many of them as she could on the spot, before the local baboon band picked the tree bare. The instinct to gorge on high-calorie food was hard-wired into our genes. Today we may be living in high-rise apartments with over-stuffed refrigerators, but our DNA still thinks we are in the savannah. That’s what makes some of us spoon down an entire tub of Ben & Jerry’s when we find one in the freezer and wash it down with a jumbo Coke. This ‘gorging gene’ theory is widely accepted. Other theories are far more contentious. For”
― Yuval Noah Harari, Sapiens: A Brief History of Humankind