50.1 MB (3.9 MB compressed)
3417 x 5120 pixels
29.0 x 43.4 cm ⏐ 11.4 x 17.1 in (300dpi)
DR P. MARAZZI / SCIENCE PHOTO LIBRARY DR P. MARAZZI / SCIENCE PHOTO LIBRARY
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Sunburn on the shoulder and torso of a 63 year old woman. Sunburn is caused by over exposure to sunlight. The ultraviolet radiation in sunlight destroys cells in the skin's outer layer and damages tiny blood vessels beneath. Affected skin becomes inflamed and may blister. Several days later the dead cells are shed in a peeling process. Sunburn is most common in fair-skinned people, whose skin lacks the protective pigment melanin. Repeated exposure can age the skin prematurely and increases the risk of skin cancer.
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