Four In Ten Smokers Wrongly Believe Vaping Is As Harmful or Worse Than SMOKO E Cigarettes Health Issues What's the Harm? Texas DSHS Many people believe that vaping is less harmful than smoking, but that's a common misconception. In fact, in addition to nicotine, vapes can contain toxic chemicals that could be linked to cancer, Will Vaping Lead Teens to Smoking Cigarettes? Johns Hopkins Medicine