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2. Health effects of sunlight exposure - Wikipedia

   en.wikipedia.org/wiki/Health_effects_of_sunlight...

   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 D3, which is essential for bone health [1] and potentially plays a role in inhibiting certain cancers. [2][3] While vitamin D can also be obtained through dietary ...

3. Ultraviolet light therapy - Wikipedia

   en.wikipedia.org/wiki/Ultraviolet_light_therapy

   D014467. [edit on Wikidata] Ultraviolet light therapy or ultraviolet phototherapy is a treatment for psoriasis, atopic skin disorder, vitiligo and other skin diseases. There are two main treatments: UVB that is the most common, and PUVA. There are four UVB types of lamps: Fluorescnt Broad-Band UVB that emit 280-330 nanometer, Fluorescent Narrow ...

4. Ultraviolet - Wikipedia

   en.wikipedia.org/wiki/Ultraviolet

   UV rays also treat certain skin conditions. Modern phototherapy has been used to successfully treat psoriasis, eczema, jaundice, vitiligo, atopic dermatitis, and localized scleroderma. [53] [54] In addition, UV light, in particular UVB radiation, has been shown to induce cell cycle arrest in keratinocytes, the most common type of skin cell. [55]

5. Light therapy - Wikipedia

   en.wikipedia.org/wiki/Light_therapy

   Light therapy for skin conditions like psoriasis usually use 313 nanometer UVB though it may use UVA (315–400 nm wavelength) or a broader spectrum UVB (280–315 nm wavelength). UVA combined with psoralen, a drug taken orally, is known as PUVA treatment. In UVB phototherapy the exposure time is very short, seconds to minutes depending on ...

6. PUVA therapy - Wikipedia

   en.wikipedia.org/wiki/PUVA_therapy

   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 ...

7. Blue Light Therapy Cured My Acne, Here’s the Scoop and the ...

   www.aol.com/blue-light-therapy-cured-acne...

   Precancerous skin conditions: In combination with photosynthesizing drugs—i.e., drugs that are applied on precancerous areas and are activated by light—blue light is a highly successful ...