Vaping Indoors and How it Contributes to Sick Home Syndrome Bactronix Secondhand Vape Exposure: Effects, Who's at Risk, and More Is Vaping Worse Than Smoking? Hartford HealthCare CT E cigarette use is linked to higher heart attack risk, especially in former smokers Vaping is not safe and is harmful to health, WHO says, both for users and bystanders South China Morning Post Confusion surrounds the vaping crisis: Here's what we know and don't ABC News