The Sexual Health Channel explores the functions -- and dysfunctions -- of the reproductive system. Learn about maintaining a healthy sex life and avoiding and treating sexual problems.
  • Male Reproductive System
  • Female Reproductive System
  • Contraception
  • Sexual Dysfunction
  • Sexuality

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?

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