Are E Cigarettes Safe? New Study Highlights Potential Health Risks The Educated Patient Vaping What are e cigarettes? ksdk.com E cigarette tobacco information and tobacco risk assessment by user group Download Scientific Diagram British smokers understand risks of e cig use better than a lot of British health officials and scientists Stanton Glantz blog 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.