For years, scientists have listed tanning beds and ultraviolet (UV) radiation as "probable carcinogens." Recently, however, a group of international cancer experts changed their stance, determining that UV emitting tanning beds are more dangerous than previously suggested and moving them to their highest cancer risk category, "carcinogenic to humans." The new categorization means that sunbeds—like cigarettes, arsenic, the hepatitis B virus, and asbestos—definitely cause cancer. A new analysis of about 20 studies found that found using tanning beds could increase the risk of developing cancer by 75 percent, especially if such exposure begins before age 30.
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