Your body is creating and killing about 2.4 million red blood cells per second.
17
The average sperm cell swims at 8 inches per hour.
76
A person can live without food for about a month, but only about a week without water.
156
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
Staying awake for 17 hours is the same for your body as drinking 2 glasses of wine.
193
In 30 minutes, the average body gives off enough heat (combined) to bring a half gallon of water to boil.
198
Our eyes are always the same size from birth, but our nose and ears never stop growing.
266