Link? You say "calories per mass", but the paragraph shows absolute values of Calories. A fatty like me probably uses more calories just to keep my fat cells fed with blood and cart my butt to the bathroom. So calories per mass makes sense to me.

It's hard to understand the mechanics of using the same energy to perform signficantly more (or less) work. A Calorie (big C, kilocalorie) is close to a Watthour, so imagine how many watthours it might take to hunt and gather.


------ Original Message ------
From: ch...@wbmfg.com
To: af@afmug.com
Sent: 1/23/2017 1:49:39 PM
Subject: [AFMUG] OT Calories

The new issue of scientific american shows that hunter gatherers expend the same amount of calories per mass as me sitting at a computer.

“But a funny thing happened on the way to the isotope ratio mass spectrometer. When the analyses came back from Baylor, the Hadza looked like everyone else. Hadza men ate and burned about 2,600 calories a day, Hadza women about 1,900 calories a day—the same as adults in the U.S. or Europe. We looked at the data every way imaginable, accounting for effects of body size, fat percentage, age and sex. No difference. How was it possible? What were we missing? What else were we getting wrong about human biology and evolution?”

Part way through the article...

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