Yawns are more contagious among people with closer relationships.
163
When you take a step, you are using up to 200 muscles.
886
One human hair can support 3 ounces.
191
Your thumb is about the same size as your nose.
124
If your DNA was stretched out it would reach to the moon 6,000 times.
256
There are times when you're walking that the pressure on your feet exceeds your body weight, and when you're running, it can be three or four times your weight.
62
The human brain doesn't stop developing until about 25 years old.
102
Our Right Lungs takes more air than our left lung.
194