By weight, Bone is five times stronger than steel.
417
You're born with 300 bones, but when you get to be an adult, you only have 206!
17
Wearing headphones for an hour increases the bacteria in your ear 700 times.
233
You would need to smoke between 20,000-40,000 joints to be at risk of dying of a THC overdose.
12
A man once sued his doctor because he survived his cancer longer than the doctor predicted.
74
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
Cigarette smoke contains 4,800 chemicals, 69 of which cause cancer.
145
Unlike dogs, pigs, and some other mammals, humans cannot taste water. They taste only the chemicals and impurities in the water.
95