The subject wants to ask "How many days is the sixth set of happy dance aerobics in dalian jinzhou new district"? Section 1 1. Dalian jinzhou new district's sixth set of happy dance aerobics consists of eleven sessions, lasting 65 minutes. Happy dancing exercise is an aerobic exercise, which can improve cardiopulmonary function, physical fitness and immunity. At the same time, exercise can promote the body's metabolism and reduce the risk of chronic diseases such as obesity and diabetes. Happy dance aerobics is carried out in groups, which can increase people's social contacts, make new friends and improve their social adaptability.