Sunlight can be useful for certain kinds of depression, such as Seasonal Affective Disorder.
Exposure to early morning sun can help properly set the body's biological clock, and help with certain kinds of insomnia. Early morning sunlight can help naturally awaken your body.
It is wise to avoid sun burn and excess indoor tanning.
Solar UVB radiation (290-315nm) is needed by the body to make Vitamin D. Vitamin D must be made by the body because dietary sources are inadequate, and supplements must be used carefully.
Mid-day summer sun is the best source of UVB. 10-15 minutes of exposut without sunscreen is enough to generate the daily requirement of Vitamin D.
Diets low in fats and alcohol, and high in antioxidants, reduces the risk of melanoma by 50%.
Grant WB. An estimate of premature cancer mortality in the United States due to inadequate doses of solar ultraviolet-B radiation, Cancer. 2002;94:1867-75.
Kennedy C, Bajdik CD, Willemze R, De Gruijl FR, Bouwes Bavinck JN; Leiden Skin Cancer Study. The influence of painful sunburns and lifetime sun exposure on the risk of actinic keratoses, seborrheic warts, melanocytic nevi, atypical nevi, and skin cancer. J Invest Dermatol. 2003 Jun;120(6):1087-93.
Millen AE, Tucker MA, Hartge P, Halpern A, Elder DE, Guerry D 4th, Holly EA, Sagebiel RW, Potischman N. Diet and melanoma in a case-control study. Cancer Epidemiol Biomarkers Prev. 2004 Jun;13(6):1042-51.
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Health Benefits Of Sunlight