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
The average person's skin weighs twice as much as their brain.
131
In 30 minutes, the average body gives off enough heat (combined) to bring a half gallon of water to boil.
198
Your thumb is about the same size as your nose.
124
For most people, no matter how hard you pinch the skin on your elbow with your fingers it doesn't hurt.
515
Within three days of death, the enzymes that once digested your food begin to eat you.
22
You can hear the blood flowing through your ears if you find a quiet place and cover them tightly.
17
If every muscle in your body could pull in one direction, you could lift nearly 25 tons.
22