Vaping not prior smoking is associated with changes in gene regulation linked to disease 5 Surprising Ways E Cigarettes Impact Neuro Health Is Vaping Worse Than Smoking Cigarettes? Get the Facts Secondhand Vape Exposure: Effects, Who's at Risk, and More Vaping is not safe and is harmful to health, WHO says, both for users and bystanders South China Morning Post E cigarette use is linked to higher heart attack risk, especially in former smokers