You may be surprised by the following facts.* Women blink twice as many times as men do.* Eyes are the most active muscles in the whole body.* There are about 550 hairs in the eyebrow.* The life span of a tastebud is 10 days.* Humans have almost 10,000 taste buds.* The colder the room you sleep in, the more likely that you will have a bad dream.* The human body is better suited for two four-hour s