Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118
The human body contains over a billion miles of DNA.
147
Dogs can be trained to identify the scent of lung cancer long before symptoms develop.
190
For most people, no matter how hard you pinch the skin on your elbow with your fingers it doesn't hurt.
515
Stress can result in more headaches as a result of the body rerouting blood flow to other parts of the body.
92
After age 30, the brain begins to lose about 50,000 neurons per day - shrinking the brain .25% each year.
55
Chewing gum boosts your brain power.
285
Your heart will pump about 212 million liters in its lifetime.
26