On average a woman has 4 sexual partners in her lifetime.
-143
Only humans shed emotional tears.
331
In one day, adult lungs move about 10,000 litres of air.
11
Playing Tetris after a traumatic event can prevent the development of traumatic memories and reduce the chance of having flashbacks.
29
Your heart will pump about 212 million liters in its lifetime.
26
Pet dogs and elephants are the only animals that seem to instinctively understand human gesture.
14
Tigers can see 6 times better at night than humans.
305
On average, a human being will have sex more than 3,000 times and spend two weeks kissing in their lifetime.
161