Adaptation!! It doesn't take generations to make the physiological adjustments, our fat cells are adapting to our lifestyles, if this study is correct...
"We found that fat cells exposed to sustained, chronic pressure -- such as what happens to the buttocks when you're sitting down -- experienced accelerated growth of lipid droplets, which are molecules that carry fats.
"Contrary to muscle and bone tissue, which get mechanically weaker with disuse, fat depots in fat cells expanded when they experienced sustained loading by as much as 50%. This was a substantial discovery."
American Friends of Tel Aviv University: Not Just What You Eat
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