This scientist busts myths about how humans burn calories—and why

Pontzer’s skill as a popularizer can rankle some of his colleagues. His message that exercise won’t help you lose weight “lacks nuance,” says exercise physiologist John Thyfault of the University of Kansas Medical Center, who says it may nudge dieters into less healthy habits.

Pontzer applied to a single college—Pennsylvania State University, whose football games were a highlight of his childhood. “I assumed I’d be my dad—go to Penn State, get my teaching degree, and stay in Kersey,” he says. But once at Penn State, he worked with the late, renowned paleoanthropologist Alan Walker and found himself considering grad school in biological anthropology.

But humans have an added energy expense: our big brains, which account for 20% of our energy use per day. Aiello had proposed that our ancestors had compensated for those expensive brains. Others thought humans had saved energy by evolving to walk and run more efficiently.

A simple way to think about it is Chimps, Orangutans, and Gorillas live in their food source - a forest. Humans have to travel greater distances to gather food because we can’t process cellulose (leaves) and need more meat (~30% of diet). Makes us the hummingbirds of apes.

ScienceVisuals Is that correct that female humans are more fatter than male humans. And males expend more energy.

ScienceVisuals The fact that training effects compensate for exercise volume has been known for decades.And yes,fat-free mass is key.That’s Why anytrainer worth their salt will tell”dieters”to run less and lift more..

ScienceVisuals am I reading this wrong or does it say the average human woman carries 30kg (66lbs) of body fat? what's their assumption for average total body weight here?

ScienceVisuals present company excepted we are not apes

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