If every muscle in your body could pull in one direction, you could lift nearly 25 tons.
22
Your thumb is about the same size as your nose.
124
The human brain uses approximately as much energy as a 10 watt light bulb.
120
The adult human brain weighs about 3 pounds (1,300-1,400 g).
99
When you take a step, you are using up to 200 muscles.
886
Yawns are more contagious among people with closer relationships.
163
One human hair can support 3 ounces.
191
Your heart will pump about 212 million liters in its lifetime.
26