The brain receives 20% of the body’s oxygen and 25% of total body glucose utilization, despite it accounting for only 2% of a person’s weight (about 1.4 kilograms).
8
If every muscle in your body could pull in one direction, you could lift nearly 25 tons.
12
For most people, no matter how hard you pinch the skin on your elbow with your fingers it doesn't hurt.
515
There's 100 trillion good bacteria living in your body.
17
The human body contains over a billion miles of DNA.
147
The human brain doesn't stop developing until about 25 years old.
102
It takes twice as long to lose new muscle if you stop working out than it did to gain it.
127