A third of the human population sneezes when they look at the Sun. Light can signal the ocular nerve near the sinuses and triggers a sneeze.
18
By weight, Bone is five times stronger than steel.
417
Playing Tetris after a traumatic event can prevent the development of traumatic memories and reduce the chance of having flashbacks.
30
Pet dogs and elephants are the only animals that seem to instinctively understand human gesture.
14
In one day, adult lungs move about 10,000 litres of air.
11
Early American humans hunted car-size armadillos and used their shells for houses.
12
Some monks can increase their body temperature so much they can dry soaking sheets in a freezing room!
32
You forget 90% of your dreams.
256