Exercise and sports have positive effects on the human health but it is known in a latest research by experts that exercising more than two and a half hour per week is injurious to health instead of being beneficial.

The experts of Copenhagen University in Denmark conducted a research on more than 5000 people for 12 years. Among these people, 1090 people were performing regular jogging while 3950 people were neither doing jogging nor took part in any physical sports. In the beginning of the research, all these people were healthy. The scientists saw…