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 your DNA was stretched out it would reach to the moon 6,000 times.
256
Your heart will pump about 212 million liters in its lifetime.
26
There are about 1,400 different species of bacteria in your belly button.
10
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
Held in farts enter your bloodstream and are bad for your body.
26
You can hear the blood flowing through your ears if you find a quiet place and cover them tightly.
19