Exercising just two or three times a week can significantly reduce middle-aged men’s risk of developing a number of cancers, according to researchers. The 19-year-long study of more than 7,500 men found that men who undertook moderately vigorous or vigorous exercise two or more times each week were 24% less likely to develop any type of cancer and 62% to develop cancer of the upper digestive tract. However, there was a downside to the results as regular exercisers were 79% more likely to develop bladder cancer. The researchers say that they believe there is now enough evidence to “justify the addition of cancer to the list of major chronic disorders likely to have their development postponed or prevented by regular physical activity.”