Poor eyesight (myopia) is associated with higher IQ.
232
Dogs can be trained to identify the scent of lung cancer long before symptoms develop.
190
Every year your body replaces 98% of your atoms.
119
Enamel is hardest substance in the human body.
61
If every muscle in your body could pull in one direction, you could lift nearly 25 tons.
22
The largest cell in the human body is the female egg and the smallest is the male sperm.
682
Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118
After age 30, the brain begins to lose about 50,000 neurons per day - shrinking the brain .25% each year.
55