26O-blood type
Having an O-blood type makes you twice as likely to attract mosquitoes than people with A blood type. B blood types fall in the middle of the spectrum.
27. Within a split second, the human nose modifies the moisture of inhaled air to a constant relative humidity of 75%, and the temperature to a constant of 98.6°F (even if the air is 40°F or 100°F).
28. The extra layer of skin over the eye of 90% of Asiatic people is called the "epicanthic fold" and is theorized to have evolved as a protection against cold and snow blindness.
29. We don't sneeze in our sleep, because our "sneeze nerve" is sleeping as well.
30. Your liver has the ability to store a year’s worth of Vitamin B12. So if you change your lifestyle (becoming vegetarian) it may take years before symptoms are noticed when deficient.
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31Eye movements
When your eyes look right, your eardrums bulge to the left, and vice versa. However, scientists have discovered that the eardrums move 10 milliseconds before the eyes do, and they don't know why.
32. For every 200 million sperm in each human ejaculation, 2 million make it into the cervix, 1 million make it into the uterus, 10,000 make it to the top of the organ, 5,000 enter the uterotubal junction, 1000 enter the Fallopian tube, 200 reach the egg and only 1 enters the egg to fertilize it.
33. With an estimated 8,000 nerve endings, the clitoris is the only human organ that exists solely for pleasure.
