Laughter involves the entire physiology of the body. When researching its effects, lab experimentation has been done on the respiratory system, the cardiovascular system, the muscular system, the central nervous system, the endocrine system, and the immune system. Laughter releases endorphins, the body's natural painkiller, and so is a pleasant act, producing a general feeling of well-being. However, more than this, laughter has been shown to considerably benefit one's health and even battle disease. Laughter brings about an increase in the number and activity level of natural killer cells that attack cells infected by virus and some types of cancer and tumor cells. This possibility of laughter's ability to fight tumorous cells has added an exciting new, and controversial area of research to cancer • The body also experiences a boost in immune function by the elevated levels of activated T cells (T lymphocytes), and an increase in the antibody, IgA (immunoglobulin A), which fights upper respiratory tract insults and infections • Disease-fighting proteins increase in gamma interferon, a blood chemical that transmits messages in the nervous system and stimulates the immune system. An increase in IgB (immunoglobulin B) brings defense against the entry of infectious organisms through the respiratory tract • In general, laughter raises your resistance against infections by increasing the concentration of circulating antibodies in the blood stream and increasing the concentration of circulating white blood cells in the immune reaction to fight foreign proteins • In addition to all of this, laughter is simply a good cardio workout, increasing heart activity, and thus stimulating circulation. After the laughter subsides, the cardiovascular system goes into a state of relaxation. "The human race has only one really effective weapon, and that's laughter. The moment it arises, all our hardness's yield, all our irritations and resentments slip away, and a sunny spirit takes their place." This, said by Mark Twain is what, as of present, we can be certain to assert about the effects of laughter on the body. It is clinically believed that when used in addition to conventional care, laughter can reduce pain and aid and speed the healing process. It has been shown that laughter has the ability to enhance conventional treatments, but not replace them. In many studies, we have seen laughter to have miraculous effects, such as relieving stress, and increasing threshold for pain. Laughter is so miraculous partially because it works as a prescription drug, but is entirely natural and has no negative side effects.
(By SANA RANA, DPT, JPMC)
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