20 minutes after smoking a cigarette, blood pressure drops to normal.
37
The human heart creates enough pressure to squirt blood 30 ft.
37
There are glasses which allow a red-green color-blind person to see colors the way everyone else does.
22
Every hour one billion cells in the body must be replaced.
17
Men have larger hearts; women's hearts beat faster.
77
Coughing can cause air to move through your windpipe faster than the speed of sound - over a thousand feet per second!
197
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