According to the Daily Mail of the UK, a new study from Harvard University has found that if young men watch three hours of television a day, their sperm count will be reduced by nearly half compared to men who watch less television, which means their fertility will also be reduced by half.
Long sitting and watching TV can halve fertility
The rumor of cola killing sperm has been widely circulated. Scientists have recently warned young men that if they constantly watch TV, their bodies will lack activity and their sperm count will significantly decrease. Researchers at Harvard University in the United States have found that as long as men watch three hours of television every day, their sperm count is only half that of those who watch less television.
In the study, scientists analyzed 189 males aged 18 to 22. More than half of them are of normal weight and have a lower likelihood of infertility. Researchers identified the quality of their sperm and recorded the time they spent on sports and watching TV within three months. After considering factors such as diet, stress, and smoking that may affect sperm quality, it was found that they engage in moderate to intense physical activity for 5-14 hours per week, while watching TV for 4-20 hours.
The data analysis results show that men who watch TV for 20 hours or more per week have almost half the number of sperm compared to men who watch TV for 4 hours or less, and watching TV can eliminate the benefits of exercise.
Harvard researchers point out that sedentary men have significantly lower sperm count than those who frequently engage in moderate intensity exercise, which may be due to a lack of exercise or excessive testicular temperature caused by prolonged sitting posture. In addition, experts also remind men who plan to have children to avoid wearing tight underwear to improve sperm quality, and point out that men who frequently drive and ride bicycles also have a risk of infertility.
This is the first time that scientists have directly studied the relationship between sperm quality and physical activity levels. The Harvard School of Public Health has concluded through research that healthy men who watch more than 20 hours of television per week have an average 44% fewer sperm count compared to men who do not watch television; Meanwhile, if men engage in moderate to vigorous exercise for 15 hours or more per week, their sperm count will increase by 73% compared to those who exercise less than 5 hours per week.
(Intern Editor: Huang Jiazhen)