This legend is backed up by research, so men, for the sake of the next generation and to be worthy of the word “man”, please stop being sedentary and get moving! The quality of male sperm may be greatly affected by physical activity levels. Researchers at the Harvard School of Public Health (HSPH) found that healthy young men who sit for long periods of time watching TV (actually watching videos and watching movies should be the same) have lower sperm counts than healthy young men who regularly engage in physical activity. Their study was published in the British Journal of Sports Medicine. The researchers said sperm quality appears to have deteriorated over the past few decades, but the exact cause is unknown. ”We know very little about the ways in which lifestyle may affect this aspect of semen quality and male fertility. So it’s really exciting to have identified two modifying factors that may have such a large impact on sperm count.” The paper’s lead author, Audrey Gaskins, a doctoral student at the Harvard School of Public Health, said the study is a good example. Gaskins (Audrey Gaskins) said. Gaskins and her colleagues analyzed the quality of semen from 189 young men aged 18-22 years. They were all University of Rochester students who participated in the Rochester Young Men’s Study in 2009. The researchers asked the participants about their level of physical activity and television viewing habits, as well as health issues that might affect sperm quality, such as dietary habits, stress levels and whether they smoked. The results showed that men who watched more than 20 hours of television per week had 44 percent lower sperm counts than those who watched little to no television. Men who exercised moderately to vigorously for 15 hours or more per week had 73 percent higher sperm counts than those who exercised for less than five hours per week. Sperm motility and shape, as well as sample semen volume, were not affected. Moderate intensity exercise had no effect on sperm count, regardless of frequency. ”Most previous studies on physical activity and sperm quality have focused on professional marathon runners and cyclists, who have levels of physical activity that most people in the world do not achieve. The physical activity levels in our study were much closer to those of the average male.” The study’s corresponding author, Jorge Chavarro, an assistant professor of nutrition and epidemiology at the Harvard School of Public Health, said the study’s physical activity levels were closer to those of the average man. Chavarro (Jorge Chavarro) said. The paper’s authors noted that while a decrease in sperm count has been shown to be associated with low fertility, it does not necessarily lead to infertility; the findings do suggest that active exercise may be helpful in boosting sperm quality. The paper’s authors also said that the type of exercise is also critical. “The next study should assess to what extent different types of exercise have an effect on sperm quality. Previous studies have demonstrated that different types of activity appear to have opposite effects on sperm quality (editor’s note: such as long runs or cycling in tight clothing for long periods of time).”