Source: Motherboard
The price of sloth may include a lower sperm count.
Healthy young men who watch a lot of TV and those who skimp on exercise have lower concentrations of sperm in their semen than guys who watch less and move more, a new study finds.
The study is small and does not prove cause and effect. But it adds to evidence that modern lifestyles may be contributing to possible declines in sperm counts in developed countries.
The findings also may offer some reassurance to active guys who have heard that exercise might decrease sperm counts.
The new study included 189 college men, ages 18 to 22, from Rochester, N.Y. Each gave researchers a semen sample and answered questions about how much time he spent watching TV and engaging in moderate to vigorous physical exercise. Among the results:
• Those who watched the most TV, more than 20 hours a week, had sperm counts 44% lower than those who watched none.
• Those who exercised the most, more than 15 hours a week, had sperm counts 73% higher than those who exercised the least, less than five hours a week.
