Brown Fat Activation (IMAGE)

Rutgers University

Brown Fat Activation

Caption

People have a few grams of brown fat that is activated when the body is cold. Brown fat uses sugar, fat and amino acids from the blood to generate heat. Left: Brown fat is not activated. Right: Cold conditions activate the brown fat as shown by the orange color on both shoulders and the neck.

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Image: Labros Sidossis/Rutgers University

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