E Cigarette How E Cigarettes Work, Health Risks & Teen Use Vapes might be less harmful than traditional cigarettes and might help smokers quit smoking, but they are not safe, especially for individuals younger than 25 years old. Plus, much is still unknown Can vaping cause changes in our cells? SAFETY SATURDAY E cigarette use is growing fast among kids and teens. A national survey found that from 2017 to 2019, vaping more than doubled among high school students and more than tripled