Your heart will pump about 212 million liters in its lifetime.
26
The average sperm cell swims at 8 inches per hour.
76
Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89
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
A person can live without food for about a month, but only about a week without water.
156
The human brain is very soft, having a consistency similar to soft gelatin or firm tofu.
13
Within three days of death, the enzymes that once digested your food begin to eat you.
22