5 Vaping Facts You Need to Know Johns Hopkins Medicine E cigarette use is linked to higher heart attack risk, especially in former smokers Puff Bar Vape E Cigarettes Could Face FDA Crackdown Smoking, Vaping, and COVID 19: Risks and Health Tips Temple Health 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