Word: sunburning
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Disadvantages: Crowds, the hot sun, screaming children, cigarette butts in the sand, sunburn...
...Garlands admit that sun blocks filter out the most damaging solar rays and prevent sunburn. But that allows fair-skinned people to stay on the beach or golf course longer than would otherwise be tolerable. Lulled into a false sense of security, these sun worshippers suffer the cumulative effect of overexposure to the type of radiation that penetrates their sunscreen and, the Garlands say, can lead to malignancy. "It's time to step back and to consider whether what we have been doing, specifically the strong use of sunscreens, is working," says Cedric, a professor at the University of California...
...evidence gathered from animal experiments and epidemiological surveys points to the high-energy, shorter-wave ultraviolet-B portion of the sun's radiation as the main culprit in causing basal- and squamous-cell cancer. (Sunburns are also caused by UV-B radiation, wrinkles by the weaker UV-A part of the spectrum.) Since no animals other than humans and opossums suffer from malignant melanoma, researchers still do not know exactly what causes that more deadly disease. Most dermatologists have long assumed that sunburn-causing UV-B must be a greater threat than UV-A. As a result, sunscreen manufacturers originally...
Public concern over ozone levels is primarily centered on the loss of stratospheric ozone, in the layer of our atmosphere existing 10 to 50 kilometers above the earth's surface. When stratospheric ozone is depleted, the dangers of severe sunburn and skin cancer due to the sun's ultraviolet radiation increase...
...J.A.M.A. editorial points out, MSH is a powerful brain chemical associated with a wide range of neurological effects; it is known to influence verbal memory in humans and sexual behavior in rats. Levine and his colleagues argue that tanning shots might offer protection for fair-skinned patients who sunburn easily, a group increasingly at risk for skin cancer as the ozone layer shrinks. But is that anything that can't be achieved at lower cost and less danger with a smear of sunscreen and a wide-brimmed...