The human brain is more active during sleep than during the day.
28
If your stomach didn't produce a new layer of mucous every two weeks, it would digest itself.
33
In 1996, research found that having excessive body hair is linked to higher intelligence.
23
Bearing a male child can alter a woman's brain by leaving male DNA that can persist for the rest of her life, making her less likely to suffer from Alzheimer's disease, promote tissue repair, and improve her immune system.
16
After age 30, the brain begins to lose about 50,000 neurons per day - shrinking the brain .25% each year.
55
Every time you lick a stamp, you're consuming 1/10 of a calorie!
47
When you get goosebumps and your hair stands, the hair helps to trap air, making you feel warmer by keeping in your body heat.
46
Coughing can cause air to move through your windpipe faster than the speed of sound - over a thousand feet per second!
197