Scripps Health E cigarettes remain the most commonly used tobacco product among middle and high school students in the United States, according to the Instagram Sleeping baby safety tip: Keep baby's environment smoke and vape free. Secondhand smoke in areas where a baby sleeps or spends time, like home or the car, increases the risk of health problems. Researchers Warn of Potential Harm From E Cigarette Secondhand Vapor AZPM Parents using e cigs expose kids to dangerous secondhand vapor Futurity Don't Be Fooled, E cig Aerosol Is Not Harmless for Kids American Lung Association