Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118
There are glasses which allow a red-green color-blind person to see colors the way everyone else does.
22
Fingers prune underwater not because of them absorbing the water or washing away the oil, but because of an evolutionary trait caused by the brain to enhance the grip of your fingers underwater.
24
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
If your DNA was stretched out it would reach to the moon 6,000 times.
256
Cats have a weak sense of taste. They have only 473 tastebuds, humans have 9,000.
307
Your heart will pump about 212 million liters in its lifetime.
26
The adult human brain weighs about 3 pounds (1,300-1,400 g).
99