03-19-2008, 12:31 PM
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Too lazy to set a custom title
Join Date: Jul 2002
Posts: 40,377
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hmm
Quote:
Tanning beds have a different ratio of UVA to UVB radiation as well as a different overall UV spectrum than sunlight does. Furthermore, the radiation levels are more intense, requiring individuals to limit their exposure to very brief periods. One study found that the amount of UVA radiation, which penetrates deeper into the skin, was anywhere from about 3-8 times greater in the tanning beds than in the light from the sun. [19]
While there appears to be a link between indoor tanning beds and cancer[20][21][22], the connection is not possible to indisputably prove because people who tan indoors also tan outdoors. Furthermore, cancer shows up decades after exposure. Last, there is a genetic component to skin cancer. None of this changes the fact that there are risks (and benefits, such as vitamin D production) associated with exposure to ultraviolet.
Women who visited a tanning parlor at least once a month were 55% more likely to later develop melanoma than women who didn't artificially suntan. Those who used sun lamps to tan while in their 20s had the greatest later risk, about 150% higher than similarly aged women who shunned tanning beds.
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http://en.wikipedia.org/wiki/Sunbed#Risks
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