Dogs can be trained to identify the scent of lung cancer long before symptoms develop.
190
Stress can result in more headaches as a result of the body rerouting blood flow to other parts of the body.
92
When you take a step, you are using up to 200 muscles.
886
Quick naps not only improve your alertness, but they also help in decision making, creativity and sensory perception.
149
For most people, no matter how hard you pinch the skin on your elbow with your fingers it doesn't hurt.
515
The average sperm cell swims at 8 inches per hour.
76
Your body is creating and killing about 2.4 million red blood cells per second.
17