Full article: Disposable electronic cigarettes chemical composition and health effects of their use. A systematic review e Cigarettes Affect Oral Health and Ways to Minimise the Side Effects Vaping and E Cigarettes Causing Outbreak of Respiratory Illnesses, Other Severe Health Problems, and Deaths Sommers Schwartz 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. Vaping isn't harmless. While e cigarettes don't contain tobacco, nicotine is highly addictive and can harm brain development. E cigarettes can cause EVALIa serious lung injury linked to vaping. Symptoms like cough, chest Health Problems Caused by Secondhand Smoke Smoking and Tobacco Use CDC