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Study examines genetics of physical activity
5/15/2019

A study published in the journal PLOS One analyzed genetic databases to identify when during human evolution genes began to influence the need for physical activity. Researcher J. Timothy Lightfoot said the evidence suggests it may have occurred about 500,000 years ago when early human bodies and brains began to grow and the savanna spread, instilling a need to forage longer distances for food.

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