Luminous vitamin. Solar radiation is the main, if not the only source of vitamin D production in humans. And this vitamin fights daytime sleepiness, reduces symptoms of depression, strengthens muscles, helps absorb calcium and reduces the likelihood of asthma.
Less cancer. Sunbathing reduces the chance of getting cancer. In fact, in Scandinavian countries the incidence of breast, colon, prostate and lung cancer is much higher, as revealed by a recent US study published in the journal P roceedings of the National Academy of Sciences . These benefits are produced by UVB rays, while UVA rays are the cause of skin cancer and burns.
Sun at noon. Scientists at the University of Manchester have shown that the sun that shines at noon is good for health even if sunscreen is not used, because it is the time of day when UVB rays reach their highest level in the spectrum. The ideal, according to the researchers, is to sunbathe without protection around 12:00 around 11 minutes if you live in Edinburgh, 9 minutes if you live in London, 7 minutes if you live in Madrid and 6.5 minutes if you walk around Athens (calculated for a clear May 30).
Less hypertension. Regular exposure to ultraviolet B light reduces the risk of developing rheumatoid arthritis, according to a study published in the Annals of the Rheumatic Diseases . In addition, scientists from the University of Maine (USA) have shown that sunlight fights hypertension.
