Within three days of death, the enzymes that once digested your food begin to eat you.
22
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
You can hear the blood flowing through your ears if you find a quiet place and cover them tightly.
19
Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118
There's 100 trillion good bacteria living in your body.
17
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
Some monks can increase their body temperature so much they can dry soaking sheets in a freezing room!
32