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2. Sunburn - Wikipedia

   en.wikipedia.org/wiki/Sunburn

   Sunburn is caused by UV radiation from the Sun but may also result from artificial sources, such as tanning lamps, welding arcs, or ultraviolet germicidal irradiation. It is the body's reaction to direct DNA damage from UVB light. This damage is mainly the formation of a thymine dimer.

3. 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 ...

4. Ultraviolet - Wikipedia

   en.wikipedia.org/wiki/Ultraviolet

   Sunburn effect (as measured by the UV index) is the product of the sunlight spectrum (radiation intensity) and the erythemal action spectrum (skin sensitivity) across the range of UV wavelengths. Sunburn production per milliwatt of radiation intensity is increased by nearly a factor of 100 between the near UVB wavelengths of 315–295 nm.

5. Have a sunburn? Dermatologists share 8 ways to heal and feel ...

   www.aol.com/news/sunburn-dermatologists-share-8...

   What causes a sunburn? “Ultraviolet radiation energy damages DNA in the skin, leading to an inflammatory response," Dr. Samer Jaber, board certified dermatologist and assistant clinical ...

6. Overexposed? Try these tips for sunburn relief | Mark Mahoney

   www.aol.com/overexposed-try-tips-sunburn-relief...

   What causes sunburn in the first place? Ultraviolet rays from the sun come in two harmful varieties. Ultraviolet A (UVA) rays are so-called aging rays, which can lead to skin cancer and cause ...

7. 3 dermatologists explain why you still need to wear sunscreen ...

   www.aol.com/lifestyle/3-dermatologists-explain...

   Miller recommends choosing a fall sunscreen that’s a little thicker than what you might apply during the sweaty summer months. Zubritsky agrees. “With cooler weather, I recommend opting for a ...

8. Sun tanning - Wikipedia

   en.wikipedia.org/wiki/Sun_tanning

   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 ...

9. Ultraviolet index - Wikipedia

   en.wikipedia.org/wiki/Ultraviolet_index

   The ultraviolet index, or UV index, is an international standard measurement of the strength of the sunburn -producing ultraviolet (UV) radiation at a particular place and time. It is primarily used in daily and hourly forecasts aimed at the general public. The UV index is designed as an open-ended linear scale, directly proportional to the ...