Cracking your knuckles does not actually hurt your bones or cause arthritis. The sound you hear is just gas bubbles bursting.
18
Sleeping on your stomach can induce weirder, scarier, and sexier dreams.
22
There are times when you're walking that the pressure on your feet exceeds your body weight, and when you're running, it can be three or four times your weight.
62
There's a new vaccine for alcoholism that gives drinkers an immediate and harsh hangover, even if they drink a small amount of booze.
14
There is a disease called ichthyosis that turns the skin scaly like a fish.
90
About half of all Americans are on a diet on any given day.
29
Every time you sneeze some of your brain cells die.
113