Tag Archives: sperm

Men who rarely reach for their phones may have higher quality semen, a new study suggests ANALYSIS | AGENCIES | Mobile phones might be one reason why male sperm count has declined dramatically over the past half century, a new study has found. This trend is a concern, because poor semen …

It’s not just the mother’s age that matters. According to new research, men’s biological clocks are ticking, too. Older fathers may put their infants — and partners — at risk for pregnancy complications. It’s 8 a.m. on your sisters 35th birthday and your mother has already called her three times. …

  HEALTH | AGENCIES | A study of hundreds of years of family trees suggests a man’s genes play a role in him having sons or daughters. Men inherit a tendency to have more sons or more daughters from their parents. This means that a man with many brothers is …