They also have well-known secondary sexual characteristics, including a muscular build and facial hair. I only knew about male, female and hermaphrodites, and not about the two other categories mentioned in the article. The author explores the harsh physical and psychological costs that come with the conforming to social standards. 20-25. I'm sure if men were able Five-Sex System. (“The Five Sexes, Revisited” 2). Barry's diagnosis, however, turned out to be somewhat premature