A person can live without food for about a month, but only about a week without water.
156
Within three days of death, the enzymes that once digested your food begin to eat you.
22
All humans have the ability to see ultraviolet light, but it is passively filtered out by the eye's lens. People who undergo surgery to remove the lens can detect ultraviolet light.
22
The human brain doesn't stop developing until about 25 years old.
102
The human body contains over a billion miles of DNA.
147
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