The average sperm cell swims at 8 inches per hour.
76
Yawns are more contagious among people with closer relationships.
163
When you get goosebumps and your hair stands, the hair helps to trap air, making you feel warmer by keeping in your body heat.
46
For most people, no matter how hard you pinch the skin on your elbow with your fingers it doesn't hurt.
515
Our Right Lungs takes more air than our left lung.
194
One human hair can support 3 ounces.
191
If your DNA was stretched out it would reach to the moon 6,000 times.
256