FUN FACTS YOU DIDN'T KNOW ABOUT YOURSELF 1.a blink was just something you did to keep your eyes moist or keep dust out of them. That is a very valuable service, of course, but we actually blink way more than needed for that alone—about 15 to 20 times per minute. In fact, closing our eyes briefly has been found, according to a study by Washington University 2.Big eyes may be considered beautiful by some, but they can cause nearsightedness. Also known as myopia, this condition that causes distant objects to look blurry is caused by light not properly reaching the retina. If your eyeball grows too long, light is focused too soon before it hits the retina—so when it does hit the retina the image is blurry. 3.Nasal passages and lungs are lined with fine hairs, or cilia, that detect and sweep out impurities. How do they detect it? By sensing bitter tastes of the things passing through them (such as, say, nicotine). When these hairs taste something bitter, they increase their rate of mov...