Unconsciousness will occur after 8-10 seconds after loss of blood supply to the brain.
94
On average, there's 100 billion neurons in the human brain.
83
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
You forget 90% of your dreams.
256
A man's beard grows fastest when he anticipates sex.
239
There are glasses which allow a red-green color-blind person to see colors the way everyone else does.
22
Human hair and fingernails continue to grow after death.
7
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