The average sperm cell swims at 8 inches per hour.
4
Yawns are more contagious among people with closer relationships.
163
Most of us have microscopic, worm like mites named Demodex that live in our eyelashes and have claws and a mouth.
-137
A person can live without food for about a month, but only about a week without water.
156
On average, a human being will have sex more than 3,000 times and spend two weeks kissing in their lifetime.
161
It takes approximately 12 hours for food to entirely digest.
93
We share 70% of our DNA with a slug.
218
A human brain produces as many as 12,000 to 50,000 thoughts per day, depending on how deep a thinker a person is.
23