It would take about 1,200,000 mosquitoes to fully drain the average human body of blood.
217
After age 30, the brain begins to lose about 50,000 neurons per day - shrinking the brain .25% each year.
55
Poor eyesight (myopia) is associated with higher IQ.
232
When you take a step, you are using up to 200 muscles.
886
The largest cell in the human body is the female egg and the smallest is the male sperm.
682
The human body contains over a billion miles of DNA.
147
For most people, no matter how hard you pinch the skin on your elbow with your fingers it doesn't hurt.
515
Your heart will pump about 212 million liters in its lifetime.
26