Dogs can be trained to identify the scent of lung cancer long before symptoms develop.
190
If your DNA was stretched out it would reach to the moon 6,000 times.
256
Your body is creating and killing about 2.4 million red blood cells per second.
17
If every muscle in your body could pull in one direction, you could lift nearly 25 tons.
22
The adult human brain weighs about 3 pounds (1,300-1,400 g).
99
For most people, no matter how hard you pinch the skin on your elbow with your fingers it doesn't hurt.
515
Your thumb is about the same size as your nose.
124
When you take a step, you are using up to 200 muscles.
886