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US: Obesity – blame the ancestors

Our urge to eat big portion sizes can be traced back to the expansion of human brain two million years ago, according to American scientist,  Dr William Leonard.  It coincided with the arrival of the first hunter-gatherer economies and required early humans to bolster their diets by seeking out more energy-rich food.

“Think about our ancestors,” Dr Leonard says. “Human hunter-gatherers typically move 8 miles per day in the search for food. In contrast, we can simply pick up the phone to get a meal delivered to our door.”

Read more: The Guardian, 12 Feb 2009

Published on February 12, 2009 in International news