A hard working adult sweats up to 4 gallons per day. Most of the sweat evaporates before a person realizes it's there, though!
25
Redheads require up to 20% more anesthesia to be knocked out.
112
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
You have no sense of smell when you're sleeping!
72
A fetus develops fingerprints at eighteen weeks!
32
A man's beard grows fastest when he anticipates sex.
239
10 seconds is the amount of time until unconsciousness after the loss of blood supply to the brain.
108
The human sigh acts as a physiological reset button.
23