The aorta, the largest artery in the body, is almost the diameter of a garden hose.
37
Chocolate, sex, and laughter are all important for a healthy brain.
37
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
It takes about 20 seconds for a red blood cell to circle the whole body.
102
If you were to roll a lung from a human body and out flat it would be the size of a tennis court.
36
Male hospital patients fall out of bed twice as often as female hospital patients.
71
By weight, Bone is five times stronger than steel.
417
In the average lifetime a person will breath in about 44 pounds of dust.
21