But one question the study didn't answer was why we laugh at all. Many animals often produce sounds that researchers believe are similar to laughter, so they suspect it may be an evolutionary mechanism designed to signal playful intent, the article says. As for other emotions, researchers recently pinpointed the spot in the brain that registers feelings of disgust, this HealthScout story says. Get Your Medifocus Medguide Research Your Illness Visit our Medcenter and get your Medifocus Guide , trustworthy medical information specifically about your health condition. Bookstore Visit our Parkinson's Disease Bookstore and find books on the latest treatments and remedies for your illness.
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