According to researchers at Purdue University, moderate exercise during the cold and flu season may strengthen the immune system and ward off illness. Researchers say exercise during the cold and flu season will help people stay in shape, fight off colds and reduce the number of days a person is ill. Researchers suggest working out at the gym, a brisk walk or jog are especially beneficial during the cold season, by strengthening the immune system. While moderate exercise is known to be very beneficial, strenuous exercise may have the opposite effect. Strenuous or prolonged exercise may actually suppress the immune system, making individuals more susceptible to illness.
Researchers conclude further research is needed to fully examine how levels of exercise may effect the immune system.
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