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 Medical Facts: Unmasking the Truth Know the Risks: A Youth Guide to E Cigarettes Notes View Vaping releases toxic chemicals, including heavy metals, as well as ultrafine particles that go deep into the lungs. These increase the risk of heart and lung disorders. e Cigarettes, Vaping and the Risks of Severe Lung Disease Canyonlands Healthcare Does vaping (using e cigarettes) make a difference to our health and are there harms with second hand vaping? iHealth Facts