The aorta, the largest artery in the body, is almost the diameter of a garden hose.
37
Human hair and fingernails continue to grow after death.
7
Pain travels through your body at 350 ft. per second.
36
The skin on your lips is 200 times more sensitive than your fingertips.
345
It is almost impossible to sneeze with your eyes open. It is a defense mechanism that has evolved to protect our eyes from bacteria and debris.
164
The pupil of the eye expands as much as 45 percent when a person looks at something pleasing.
130
Kissing releases masses of oxytocin, a "love potion" that helps couples bond and feel more attracted to each other.
13