Data on the long-term health effects is limited, because vapes are relatively new and constantly evolving. Many people who use them are in their teens or 20s; it might take a while before further effects become apparent.
Even so, “common sense tells you — your mom would tell you — that a superheated chemical inhaling right into your lungs isn’t going to be good,” said Dr. James H. Stein, a professor of cardiovascular medicine at the University of Wisconsin School of Medicine. Increasingly, research is pointing to the reality that while vapes do not contain the same dangerous chemicals as cigarettes, they come with their own harms.