You can't tickle yourself.
29
On average, there's 100 billion neurons in the human brain.
83
In ancient Egypt, priests plucked EVERY hair from their bodies, including their eyebrows and eyelashes.
130
The largest cell in the human body is the female egg and the smallest is the male sperm.
682
The average sperm cell swims at 8 inches per hour.
4
When you are looking at someone you love, your pupils dilate, they do the same when you are looking at someone you hate.
1k
It takes approximately 12 hours for food to entirely digest.
93
Fingers prune underwater not because of them absorbing the water or washing away the oil, but because of an evolutionary trait caused by the brain to enhance the grip of your fingers underwater.
24