A analysis of more than 100 studies found the vaping can have long term health consequences. Comparing the cancer potencies of emissions from vapourised nicotine products including e cigarettes with those of tobacco smoke Tobacco Control Lung cancer risks persist with e cigarette use after quitting tobacco smoking Lung Cancer Europe European Lung Cancer Advocacy Network A new peer reviewed paper has added weight to concerns about vaping and cancer risk. It brings together evidence from human, animal Teens inhale cancer causing chemicals in e cigarettes, new study shows Teens inhale cancer causing chemicals in e cigarettes