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There is an English saying:" Laughter is the best medicine." Until , few people took the saying seriously. Now however, doctors have begun to look into laughter and the effects it has on the human body. They find that it people's blood pressure, the heart beating and breathing. It works the stomach and even the feet. So laughter exercises the body and improves people's health.
As a result of these discoveries, some doctors in the United States now hold laughter clinics; in which they help to improve their patients' condition encouraging them to laugh. They have found that even if their patients do not really feel like , making them smile is enough to produce beneficial effects similar to those caused by laughter.
