Most dreams last only 5 to 20 minutes.
79
Fingernails grow nearly 4 times faster than toenails.
31
Some people have a "natural alarm clock" allowing them to wake up when they want. This is actually caused by a burst of the stress hormone adrenocorticotropin.
15
Poor eyesight (myopia) is associated with higher IQ.
232
Pain travels through the body at 350 feet per second!
23
The brain can stay alive for 4 to 6 minutes without oxygen. After that cells begin die.
193
Like fingerprints, everyone's tongue print is different!
71