Sperm quality in U.S. men has been falling over the past 15 years according to a study, and while it's not entirely clear why, environmental factors may be playing a part. Talk of declining sperm is ...

Add Yahoo as a preferred source to see more of our stories on Google. Come again? Scientists now believe there's a link between sperm count and how long men live. Benjamin Nolte/dpa Understanding ...

Some 15% of couples struggle with infertility. When couples fail to conceive, guidelines recommend both the man and woman undergo a tandem fertility evaluation. For men, this includes providing at ...

Young men who eat a heart-healthy diet may have better quality sperm than their peers who dine mostly on junk food, a small study suggests. The American Heart Association recommends the Dietary ...