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Sunbaker, by Max Dupain. Exposure of skin to ultraviolet radiation from sunlight presents both positive and negative health effects. On the positive side, UV exposure enables the synthesis of vitamin D 3, which is essential for bone health [1] and potentially plays a role in inhibiting certain cancers.
Given the causal relationship between sun exposure and AK growth, they often appear on a background of sun-damaged skin and in areas that are commonly sun-exposed, such as the face, ears, neck, scalp, chest, backs of hands, forearms, or lips. Because sun exposure is rarely limited to a small area, most people who have an AK have more than one. [10]
Basal-cell carcinoma is a common skin cancer and occurs mainly in fair-skinned patients with a family history of this cancer. Sunlight is a factor in about two-thirds of these cancers; therefore, doctors recommend sunscreens with at least SPF 30.
Skin cancer can absolutely appear in areas of the skin that tend to not get much sun exposure. Acral melanoma , in particular, is a subset of melanoma that grows on the palms and soles.
Skin cancer is the most common form of cancer, globally accounting for at least 40% of cancer cases. [5] [20] The most common type is nonmelanoma skin cancer, which occurs in at least 2–3 million people per year. [6] [21] This is a rough estimate; good statistics are not kept. [1]
Decreased exposure of the skin to sunlight is a common cause of vitamin D deficiency. [1] People with a darker skin pigment with increased amounts of melanin may have decreased production of vitamin D. [3] Melanin absorbs ultraviolet B radiation from the sun and reduces vitamin D production. [3] Sunscreen can also reduce vitamin D production. [3]
A woman who fell asleep at the beach and developed severe sun poisoning has documented her symptoms which left her face severely swollen. Bela Chatwin, 21, from Utah, had swollen up so much that ...
Dyspigmentation, the formation of wrinkles and other symptoms appear around regions of skin commonly exposed to sun, mostly the eyes, mouth and forehead. [10] The lips may be affected. [10] In Canadian women, the upper chest is commonly affected. [10] Spider veins on face and neck; Loss of color and fullness in lips
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