A new research study found that exposure to nicotine from e-cigarette vapor causes lung cancer.
According to a study done at New York University, vaping causes lung cancer and potentially bladder cancer in mice, concluding it is likely "very harmful" to humans as well.
The study was funded by the National Institutes of Health and is the first to definitely link cancer to vaping.
The amount of smoke the mice were exposed to was similar to a person who's vaped for about three to six years.