On average a woman has 4 sexual partners in her lifetime.
-143
Due to the angle at which the optic nerve enters the brain, staring at a blue surface during sex greatly increases the intensity of orgasms.
252
An unprotected human can survive up to 1.5 minutes in space with no permanent bodily damage.
82
Modern humans first appeared about 200,000 years ago, but record keeping didn't begin until about 6,000 years ago. That means about 97% of human history is lost.
21
Babies crawl an average of 200m a day.
212
Unconsciousness will occur after 8-10 seconds after loss of blood supply to the brain.
93
The human brain doesn't stop developing until about 25 years old.
102
It takes approximately 12 hours for food to entirely digest.
93