Scripps Health E cigarettes remain the most commonly used tobacco product among middle and high school students in the United States, according to the Instagram How Does Vaping Affect You? Short & Long Term Effects Explained Vaping, Environmental Toxicants Exposure, and Lung Cancer Risk If you vape, you inhale a lot of harmful substances. These can damage your heart and lungs. The Scary Truth About Teen Vaping New study comes the closest yet to proving that e cigarettes aren't as dangerous as smoking