Or the scare-someone-in-their-30s-like-myself-shitless article. An excerpt from the article will give you an idea of what I mean:
"30s: Testosterone level start to decline at age 30, bringing a decrease in potency. By 32-34, fertility begins to fall. Men who are 35 or older are twice as likely to be infertile as men under age 25. The mid-thirties also bring a significant increase in sperm DNA damage and thus an increased risk of producing birth defects. One in 99 fathers ages 30-35 sire children with Schizophrenia versus one in 141 for fathers under age 25."
Oh, my boys! :(