If you were to roll a lung from a human body and out flat it would be the size of a tennis court.
36
The average sperm cell swims at 8 inches per hour.
76
"Fish odor syndrome" is a rare genetic disorder that causes people to smell like rotten fish.
5
A human being loses an average of 40 to 100 strands of hair a day.
133
Some people have a "natural alarm clock" allowing them to wake up when they want. This is actually caused by a burst of the stress hormone adrenocorticotropin.
15
Fingernails grow nearly 4 times faster than toenails!
30