The adult human brain weighs about 3 pounds (1,300-1,400 g).
99
If every muscle in your body could pull in one direction, you could lift nearly 25 tons.
22
Staying awake for 17 hours is the same for your body as drinking 2 glasses of wine.
193
In 1996, research found that having excessive body hair is linked to higher intelligence.
23
Stress can result in more headaches as a result of the body rerouting blood flow to other parts of the body.
92
The focusing muscles of the eyes move around 100,000 times a day. To give your leg muscles the same workout, you would need to walk 80km (50 miles) every day.
21
For most people, no matter how hard you pinch the skin on your elbow with your fingers it doesn't hurt.
515
In ancient Egypt, priests plucked EVERY hair from their bodies, including their eyebrows and eyelashes.
130