About 400 different kinds of microbes live on and in the human body.
-3
Scientists estimate that laughing 100 times is equivalent to a 10-minute workout on a rowing machine.
202
Human hair and fingernails continue to grow after death.
7
If every muscle in your body could pull in one direction, you could lift nearly 25 tons.
12
On average, women have always lived longer than men.
195
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
On average, someone in the US suffers a stroke every 40 seconds; someone dies every 3 minutes from stroke.
57
Every hour one billion cells in the body must be replaced.
17