The human sigh acts as a physiological reset button.
23
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
Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89
Within three days of death, the enzymes that once digested your food begin to eat you.
22
Your heart will pump about 212 million liters in its lifetime.
26
In 30 minutes, the average body gives off enough heat (combined) to bring a half gallon of water to boil.
199
The human brain doesn't stop developing until about 25 years old.
102