Yes, add it to the list. According to studies, healthy young men who watch TV for more than 20 hours a week have almost half the sperm count of men who watch very little television – in fact, their count was 44% lower than those who watched the least amounts of TV.
Allan Pacey, PhD, British Fertility Society chairman and senior lecturer in andrology at the University of Sheffield, says the findings fit with what fertility experts already know.
“We know that men who wear too tight underwear have poorer sperm. So it’s not a million miles away from sitting on the sofa … for too long and heating up your testicles for too long. It’s the same mechanism I would suspect.”