The focusing muscles of the eyes move around 100,000 times a day. To give your leg muscles the same workout, you would need to walk 80km (50 miles) every day.
21
If your stomach didn't produce a new layer of mucous every two weeks, it would digest itself.
33
"Fish odor syndrome" is a rare genetic disorder that causes people to smell like rotten fish.
5
The average female will have 3.3 pregnancies in her life.
49
Your skin is actually an organ.
88
The skin on your lips is 200 times more sensitive than your fingertips.
345
Unlike dogs, pigs, and some other mammals, humans cannot taste water. They taste only the chemicals and impurities in the water.
95
The levels of two stress hormones, cortisol and epinephrine which suppress the body's immune system, will actually drop after a dose of laughter.
112