The color of our skin is determined by the presence of melanin (sometimes referred to as pigment). Large amounts of melanin result in darker skin. Lesser amounts result in lighter skin. Melanin acts to protect the skin from the damaging rays of the sun. Darker skin is better protected. Melanin is also found in the iris of the eye, and its presence aids in keen vision. Those with low melanin (albinism) occasionally have other health problems, along with poor vision. |
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