| ■ Pro Cyclists Have Poor Sperm Quality: Study | 2009.07.06 |
| Professional cyclists have poorer sperm quality than other men, possibly due to heat from wearing tight clothing, the friction of the testes against the saddle, and the overall physical demands of being an elite cyclist, Spanish researchers say. They suggested that professional cyclists consider freezing their sperm before starting their careers, BBC News reported. The study of 15 top triathletes who ride more than 186 miles a week found they have less than four percent normal-looking sperm, which would cause "significant" fertility problems. The findings were presented at a meeting of the European Society of Human Reproduction and Embryology. But recreational cyclists or those who cycle to work aren't likely to experience fertility problems, a British expert told BBC News. |