You're born with 300 bones, but when you get to be an adult, you only have 206!
17
Fingernails grow nearly 4 times faster than toenails!
30
It is possible to go blind from smoking too heavily.
50
Sitting straight upright in your chair is bad for your back. You should instead slouch at an angle of 135 degrees.
10
On average, there's 100 billion neurons in the human brain.
83
Ernest Hemingway survived through anthrax, malaria, pneumonia, dysentery, skin cancer, hepatitis, anemia, diabetes, high blood pressure, two plane crashes, a ruptured kidney, a ruptured spleen, a ruptured liver, a crushed vertebra, a fractured skull, and more.
67
Wearing headphones for an hour increases the bacteria in your ear 700 times.
233
The average female will have 3.3 pregnancies in her life.
49