Scientist: Humans evolved to run

Fit City

desk much of the day. We drive to restaurants and convenience stores. We eat more calories and we expend less energy.

“We think it’s normal to eat breakfast cereal from a box and fly in a plane. We sit in plush comfy chairs and sleep on mattresses,” Lieberman says. “But we didn’t evolve for any of that.”

All of which means we’re headed down a road mined with heart attacks and diabetes. “It’s abnormal not to be physically active,” Lieberman says. “And if we don’t solve this problem now, we’re in trouble.”

Those buff huntergatherers didn’t suffer