Photo by curretett on Freeimages.com Young adults who use tanning beds may be aging their skin cells at a molecular level much faster than their chronological age suggests, according to a new study from the University of California, San Francisco (UCSF) and Northwestern University. The research, published December 12 in Science Advances , reports that tanning bed users in their 30s and 40s harbour more mutations in their skin cells than nonusers who were in their 70s or 80s.

Findings from a case-control study show that a history of indoor tanning is the strongest risk factor for the development of multiple...