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Human beings enjoy laughing. Laughing is referred to as “the best medicine.” It is a way of dealing with the stresses of daily life, but more than that, it is a way of relating to fellow mankind. Comedians make a career by being available to keep people laughing. Actors on sitcoms also get paid to entertain an audience. For many, laughing is a natural process. The average adult actually laughs up to seventeen times a day. Many people do not take the time to dwell on it, but laughter is a very complex response. Some of the same skills used in solving problems lead up to the high-pitched noise, known as laughing. Laughter should not be confused with humor. Laughter is merely the physiological response to something humorous. Laughter is really a two-part process. The first part is a set of gestures, while the second is just the sound produced by the individual. When a person laughs, his or her brain pressures many parts of the body. When a person laughs excessively, changes occur in the arm, leg, and even trunk muscles. When a person laughs, fifteen different facial muscles are contracting. Also, the respiratory system is being disturbed, resulting in a gasping noise. In severe cases, tear ducts are stimulated, making the face turn a reddish purple color.
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