“Many confounding factors in real life—including lifestyle, UV exposure, occupational hazards, and immune status—can influence cancer risk,” says Tung. “As with many environmental exposures, ...

Tattoos have become a popular way for people to express themselves, but new research is raising concerns about the safety of tattoo ink. Scientists have found evidence suggesting that certain ...

Historically, tattoos existed at the fringe of society. But today, tattoos are mainstream — gracing the skin of athletes, celebrities, professionals and everyday people. According to the Pew Research ...

This story was featured in The Must Read, a newsletter in which our editors recommend one can’t-miss story every weekday. Sign up here to get it in your inbox. The worst part of getting a tattoo ...