| Urine doesn’t smell—at least not when it leaves the body. The bad smell comes from bacteria that grows when urine sits stagnant |
| Medomalacuphobia is the fear of losing an erection. |
| The clinical term for a hairy buttocks is "daysypgal." |
| During puberty, increased production of testosterone (in both boys and girls) affects the oil glands in the skin, resulting in acne. |
| Sperm with a "Y" chromosome, which determines the male gender, are lighter and swim faster than sperm with an "X" chromosome, which determines the female gender. So about 105 boys are born for every 100 girls. |
| "Eurotophobia" is the fear of female genitalia. |
| The scrotum maintains a temperature 4-7 degrees cooler than the rest of the body because a low temperature is necessary for the formation of healthy sperm. |
| For every 35 pounds of weight a man carries over his ideal weight, his penis will appear to be one inch smaller. |
| Ultrasound tests have revealed that male fetuses have the capability for erections in the last trimester of gestation. |
| Prolonged stress can result in the cessation of menstruation, failure to ovulate, impotence, or loss of sex drive. |