A sneeze can travel up to 100 mph.

Each person has about 4 pounds of bacteria living inside of his/her body.

Fingernails grow 4 times faster than toenails.

Deep breathing gives you similar benefits as aerobics.

Smokers are four times more likely to complain about a feeling tired in the morning than non-smokers, and are 70% more likely to have hearing problems.

A human record of staying awake is 11 days.

Babies are born without kneecaps. They develop at around 2-6 year of age.

Your kitchen sink is dirtier than your bathtub.

Four out of five doctors don’t get enough exercise.