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Human eating behavior: it s the leptin, stupid.

Posted on September 28, 2007

By Dov Michaeli MD, Ph.DLeptin is a hormone secreted from fat cells that provides information to the brain about energy stores. If energy stores are abundant, circulating levels of leptin are high, and the brain s response is reduced food intake. On the other hand, in the fasted state leptin levels are low, and the response is increased food intake. It had been known that the regions of the brain where leptin exerts its influence are the nucleus accumbens and the associated nerve bundles called the striatum, regions where the reward/pleasure centers are located (and are the seat of addicti...

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addiction , exercise , obesity