Princeton’s Jacobs believes that, based on experiments with cats, repetitive motor activity—walking, chewing, breathing—stimulates the release of serotonin, which improves mood. That might explain why people are soothed by gum chewing and why obsessive-compulsives perform such ritualistic acts as hand washing over and over; they may simply be self-medicating to overcome a serotonin deficit.
THE MOOD MOLECULE - TIME
Posted on February 28th, 2011
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