The first patented condom was meant to be reused!
47
If your stomach didn't produce a new layer of mucous every two weeks, it would digest itself.
33
You can alleviate a tickly throat by scratching your ear.
9
Smoking while pregnant increases the chances of spontaneous abortions (miscarriages) stillbirths and premature labor.
77
Your body is creating and killing 15 million red blood cells per second!
14
The record for the longest scientifically documented period without sleep is 264.4 hours (eleven days).
15
Kissing releases masses of oxytocin, a "love potion" that helps couples bond and feel more attracted to each other.
13