The largest cell in the human body is the female egg and the smallest is the male sperm.
682
The aorta, the largest artery in the body, is almost the diameter of a garden hose.
37
Every time you sneeze some of your brain cells die.
113
Due to the angle at which the optic nerve enters the brain, staring at a blue surface during sex greatly increases the intensity of orgasms.
252
Obsessive nose picking is called Rhinotillexomania.
101
Kissing releases masses of oxytocin, a "love potion" that helps couples bond and feel more attracted to each other.
13
Your heart rate can rise as much as 30% during a yawn.
69
Bearing a male child can alter a woman's brain by leaving male DNA that can persist for the rest of her life, making her less likely to suffer from Alzheimer's disease, promote tissue repair, and improve her immune system.
16