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New Human Metabolism Research Upends Conventional Wisdom about How We Burn Calories
scientificamerican ^ | January 2023 Issue | By Herman Pontzer

Posted on 12/19/2022 11:24:30 AM PST by bitt

Metabolism studies reveal surprising insights into how we burn calories—and how cooperative food production helped Homo sapiens flourish

It was my daughter Clara’s seventh birthday party, a scene at once familiar and bizarre. The celebration was an American take on a classic script: a shared meal of pizza and picnic food, a few close COVID-compliant friends and family, a beaming kid blowing out candles on a heavily iced cake. With roughly 380,000 boys and girls around the world turning seven each day, it was a ritual no doubt repeated by many, the world’s most prolific primate singing “Happy Birthday” in an unbroken global chorus.

Such a wholesome setting seems an unlikely place for rampant rule breaking. But as an evolutionary anthropologist, I can’t help but notice the blatant disregard our species shows for the natural order. Nearly every aspect of our modern lives marks a cheerfully outrageous departure from the laws that govern every other species on the planet, and this birthday party was no exception. Aside from the fresh veggies left wilting in the sun, none of the food was recognizable as a product of nature. The cake was a heat-treated amalgam of pulverized grass seed, chicken eggs, cow milk and extracted beet sugar. The raw materials for the snacks and drinks would take a forensic chemist years to reconstruct. It was a calorie bonanza that animals foraging in the wild could only dream about, and we were giving it away to people who didn’t even share our genes. All this to celebrate some obscure astronomical alignment, the moment our planet swept through the same position relative to its star as on the day my daughter was born. At seven years old, most mammals are grandparents if they’re lucky enough to be alive. Clara was still a kid, dependent on us for food and shelter and years away from independence.

Humans weren’t always such scofflaws. We come from a good Family. The living apes, our closest relatives, are well-behaved primates, eating fruit and leaves straight from the tree and nibbling on the occasional meal of insects or small game. Like every other mammal, apes learn early to fend for themselves, foraging on their own as soon as they’re weaned, and they know better than to give their hard-earned food away. Fossils from deep in the human lineage, the first four million years after we broke from the other apes, indicate our early ancestors played by the same ecological rules.

...more


TOPICS: Culture/Society; Extended News
KEYWORDS: calories; metabolism
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1 posted on 12/19/2022 11:24:30 AM PST by bitt
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To: null and void; aragorn; EnigmaticAnomaly; kalee; Kale; AZ .44 MAG; Baynative; bgill; bitt; ...

p


2 posted on 12/19/2022 11:24:45 AM PST by bitt (<img src=' 'width=50%>)
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To: bitt

And then we discovered eating meat....


3 posted on 12/19/2022 11:27:41 AM PST by Wonder Warthog (Not Responding to Seagull Snark)
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To: Wonder Warthog

Which is the REASON we have developed CANINE TEETH


4 posted on 12/19/2022 11:30:07 AM PST by ridesthemiles
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To: All
"We’ve measured Hadza energy budgets using doubly labeled water, giving us a clear idea of the calories men and women consume and expend each day."

I've double labeled my water and couldn't figure out anything dealing with calories.

5 posted on 12/19/2022 11:33:05 AM PST by BipolarBob (The party never stops until someone calls the cops.)
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To: bitt

The author is overly verbose, but I did find a bit of humor in his description of the cake.


6 posted on 12/19/2022 11:40:33 AM PST by reed13k (For evil to triumph it is only necessary that good men do nothing)
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To: bitt
And this dude is worried about the natural order?
The celebration was an American take on a classic script: a shared meal of pizza and picnic food, a few close COVID-compliant friends and family...

7 posted on 12/19/2022 11:43:25 AM PST by nicollo ("I said no!")
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To: Wonder Warthog
Chimps eat meat.

Still alive and screaming meat.

But they show no inclination to make complex tools, build, control fire or do much of anything besides eat, sleep, hit things, copulate with any female around and throw their poop.

Something like democrats come to think of it.

Meat eating is not the magic switch some think it is.

8 posted on 12/19/2022 12:02:47 PM PST by Harmless Teddy Bear (The nation of france was named after a hedgehog... The hedgehog's name was Kevin... Don't ask)
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To: bitt; All

Sci-Am the main stream media of the scientific set.

Mostly lies with strong support of the current leftist narrative covered by a superficial gloss of science.

I dropped my subscription when Martin Gardner retired.


9 posted on 12/19/2022 12:07:39 PM PST by Politically Correct (A member of the rabble in good standing)
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To: reed13k

I don’t know why these liberals are allowed to write scientific articles. Birthday parties for seven year old kids are anecdotal at best and don’t do anything except prompt emotional responses. Science used to be derived from logic and reasoning by way of experimentation. Now it’s all about feelings.


10 posted on 12/19/2022 12:10:26 PM PST by webheart
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To: bitt

Does the article actually talk about the headline or is it all empty blather by the author?


11 posted on 12/19/2022 12:17:29 PM PST by ifinnegan (Democrats kill babies and harvest their organs to sell)
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To: bitt

So, did the move to a sharing community get started by some ancient soy-boy he wasn’t man enough to hunt nor willing enough to lower himself to foraging with the women? Did he figure out the only way he was going to survive was to convince others to collect his food for him while he sat back and painted cave walls?


12 posted on 12/19/2022 12:19:11 PM PST by redangus
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To: bitt

I have no aspiration to live like an ape.

I am not descended from apes.

And mankind is ingenious the way we have gotten to the point where our food is so safe and plentiful and appealing. More birthday parties please.

We are far healthier and happier than apes for crying out loud. Why do we idolize primates.


13 posted on 12/19/2022 12:20:11 PM PST by Persevero (You cannot comply your way out of tyranny. )
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To: Harmless Teddy Bear

“ Chimps eat meat.”

Yes they do. It wasn’t thought they did until it was observed. Capturing and killing baboons, for example, and eating them.

“But they show no inclination to make complex tools, build, control fire or do much of anything besides eat, sleep, hit things, copulate with any female around and throw their poop.”

They have been observed making a very basic tool from a twig to use in eating ants.

I don’t know if that is behavior all chimps show or only certain more clever ones.


14 posted on 12/19/2022 12:21:13 PM PST by ifinnegan (Democrats kill babies and harvest their organs to sell)
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To: webheart

Actually, I disagree. Many scientific discoveries were driven by idle observations of the world around us that drove someone to research cause and effect. See Newton and a falling apple.


15 posted on 12/19/2022 12:21:27 PM PST by redangus
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To: Harmless Teddy Bear

Meat eating is not the magic switch some think it is.

**************************

There is very nearly nothing produced in the dietary “sciences” that wasn’t ideological or political agenda driven from the very start.


16 posted on 12/19/2022 12:27:28 PM PST by Grimmy (equivocation is but the first step along the road to capitulation)
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To: bitt

“few close COVID-compliant friends and family…”

They just can’t help themselves.

L


17 posted on 12/19/2022 12:28:31 PM PST by Lurker (Peaceful coexistence with the Left is not possible. Stop pretending that it is.)
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To: ifinnegan
I said complex tool for a reason.

While picking up a stick makes the stick a "tool" it is not a complex tool.

Any number of birds pick up hard shell prey and drop them on to rocks to break them open.

They are using the rocks as tool but once again they are still not complex tool makers.

18 posted on 12/19/2022 12:30:45 PM PST by Harmless Teddy Bear (The nation of france was named after a hedgehog... The hedgehog's name was Kevin... Don't ask)
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To: Grimmy
Maybe.

I have always found the study of how cooking and other ways of preparing food changes it to make the food easier to digest interesting.

But then I am a cook so it is in my wheel house so to speak.

19 posted on 12/19/2022 12:34:20 PM PST by Harmless Teddy Bear (The nation of france was named after a hedgehog... The hedgehog's name was Kevin... Don't ask)
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To: bitt

Wow, Caucasians are meat eaters. We have evolved to eat plants occasionally. We are white. We have the ability to create clothing. We can survive the winter. All things Sub- Saharan Africans did not do to any great extent. Caucasians, especially the blond hair blue eyed kind had no plants to eat for 9 out of 12 months. They did no the seasons because it meant life or death. Just as other plants and animals have adapted to the seasons.

Whats less than a two century’s old are breakfast, sugar, corn starch, white flour. Sure there was some minor usage of these things but mostly for the very rich. And even then it was rare.

We spent 60,000 years learning to live in Europe. In the past 10,000 years we learned to farm animals, then plants. And we learned to adapt to very cold temperatures. We are the hunters and gatherers. And gathering was not available most of the year. We could fish and hunt. We could live in short cold days. And long colder nights. That is who we are.


20 posted on 12/19/2022 12:35:06 PM PST by poinq
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