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PUVA ( psoralen and UVA) is an ultraviolet light therapy treatment for skin diseases: vitiligo, eczema, psoriasis, graft-versus-host disease, mycosis fungoides, large plaque parapsoriasis, and cutaneous T-cell lymphoma, using the sensitizing effects of the drug psoralen. [1] : 686 [2] [3] The psoralen is applied or taken orally to sensitize the ...
Melanoma is the most dangerous type of skin cancer.[2] Globally, in 2012, it newly occurred in 232,000 people.[2] In 2015, 3.1 million people had active disease, which resulted in 59,800 deaths. [5][6]Australia and New Zealand have the highest rates of melanoma in the world.[2]
Dermatophagia. Dermatophagia (from Ancient Greek δέρμα — lit. skin and φαγεία lit. eating) or dermatodaxia (from δήξις, lit. biting) [3] is a compulsion disorder of gnawing or biting one's own skin, most commonly at the fingers. This action can either be conscious or unconscious [4] and it is considered to be a type of pica.
Health effects of sunlight exposure. Exposing skin to the ultraviolet radiation in sunlight has both positive and negative health effects. On the positive side, exposure allows for the synthesis of vitamin D 3. Vitamin D has been suggested as having a wide range of positive health effects, which include strengthening bones [ 1] and possibly ...
Too much UV ultraviolet radiation of an undesirable wavelength may lead to direct DNA damage, sunburn, and skin cancer. [6] In contrast to exposure to UV-B light given at low dosage, it was found that UV-A light increases the risk of skin cancer because it penetrates the epidermis and it is given in a much higher dosage.
Excessive unprotected exposure to the sun's ultraviolet (UV) rays can cause skin damage, eye damage, immune suppression, and skin cancer. Even people in their 20s can develop skin cancer.
Sun tanning or tanning is the process whereby skin color is darkened or tanned. It is most often a result of exposure to ultraviolet (UV) radiation from sunlight or from artificial sources, such as a tanning lamp found in indoor tanning beds. People who deliberately tan their skin by exposure to the sun engage in a passive recreational activity ...
Researchers have demonstrated that CBD may have potential protective benefits against UVA radiation, the type of wavelength that can cause aging and lead to cancer. A small study of just 19 ...