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
If you cut a 'V' shape into your toe nails, you can prevent 'in-grown' toe nails.
22
Sleeping on your stomach can induce weirder, scarier, and sexier dreams.
22
Sitting straight upright in your chair is bad for your back. You should instead slouch at an angle of 135 degrees.
10
Your body is creating and killing about 2.4 million red blood cells per second.
17
It's possible to die from a broken heart; it's called Stress Cardiomyopathy.
165
A person will burn 7 percent more calories if they walk on hard dirt compared to pavement.
45
The average person's skin weighs twice as much as their brain.
131