Since their introduction in Europe in 2006 and the U.S. in 2007, the use of e cigarettes a.k.a., vapes has skyrocketed. A recent review from researchers in Australia found the results Although research on cancer risks associated with vaping is still limited, a 2025 systematic review found substantial evidence that e cigarette exposure is associated with biomarkers reflective of cancer disease risk. This includes E cigarettes are like a flamethrower of chemicals, says Natalie Gassman, Ph.D., who conducts cancer research at the MCI. Read more about her important work related to vaping, tanning and more in this Misconceptions about e cigarette safety might be stopping smokers using them to quit