Secondhand vape plumes could form lung damaging radicals American Chemical Society E cigarette use is linked to higher heart attack risk, especially in former smokers Puff Bar Vape E Cigarettes Could Face FDA Crackdown Smoke and Mirrors: The Myth of Healthy Vaping University of Utah Health Secondhand e cigarette aerosols expose kids to less nicotine than cigarettes, study finds, but can still be risky CNN Don't Vape Your Health Away UConn Today