By weight, Bone is five times stronger than steel.
417
A person will create enough saliva to fill two average size swimming pools during his lifetime.
191
Playing Tetris after a traumatic event can prevent the development of traumatic memories and reduce the chance of having flashbacks.
29
Crying literally alleviates stress and uniquely allows humans to decrease feelings of anger and sadness.
24
If the human eye was a digital camera, it would have 576 megapixels.
25
Stress can result in more headaches as a result of the body rerouting blood flow to other parts of the body.
92
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