Smoking and Vaping with Asthma: Causes, Triggers and More Global Allergy & Airways Patient Platform Vaping weed is popular, but there are many unknowns about its safety : NPR 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 Vaping refers to the act of inhaling and exhaling aerosol, often called vapor, produced by an electronic cigarette or similar device. These devices heat a liquid that usually contains nicotine, flavorings, and