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. Health Risks of Secondhand Smoke and Aerosols Factsheet US EPA The Dangers of Vaping Oral Health Perspective ASHES, Vol. 14(9) What's in that vape? Sending health warning messages by text BASIS (The Brief Addiction Science Information Source) New study comes the closest yet to proving that e cigarettes aren't as dangerous as smoking Analysis suggests e cigarette use may be linked to lower rates of smoking