As science advanced from philosophy to empirical knowledge, groundbreaking discoveries -- like the five on this list -- revealed a lot about the reproductive equipment inside human bodies. Which revolutionized our understanding of sex the most?
WHAT'S INSIDE: SEXUAL HEALTH
- Male Reproductive System
- Female Reproductive System
- Sexual Dysfunction
The evolutionary rationale behind the male orgasm is obvious -- it's the female orgasm that's a little more obscure. Is it an evolutionary necessity or a lucky accident that's on its way out?
OK, so you've never pinned a rubber to a bulletin board. But what about the old inside-out error? Or the thing about squeezing the air out of the tip? It's never too late to learn. We won't judge.