A new study published in Pediatrics has found that many of the carcinogens found in conventional cigarettes are also in e-cigarettes. Many youth who use e-cigarettes do so because they think they're safer than regular cigarettes, but the study found that teens who use e-cigarettes are still ingesting toxins, including some that cause cancer. The study, which involved 103 teenagers, found that some chemicals were three times more likely to be in the systems of teens that used e-cigarettes and conventional cigarettes, while chemicals were also three times more likely to be found among youth who only used e-cigarettes than in youth that used neither conventional cigarettes or e-cigarettes.