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
You can hear the blood flowing through your ears if you find a quiet place and cover them tightly.
17
Within three days of death, the enzymes that once digested your food begin to eat you.
22
The average sperm cell swims at 8 inches per hour.
76
In 1996, research found that having excessive body hair is linked to higher intelligence.
23
Most of us have microscopic, worm like mites named Demodex that live in our eyelashes and have claws and a mouth.
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