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. While vaping is not risk free, it is less harmful than tobacco Our World in Data More middle and high schoolers are getting exposed to secondhand vape aerosols, study indicates The Boston Globe According to a Centers for Disease Control and Prevention (CDC) study, 40% of U.S. adults believe that children's exposure to secondhand aerosol from e cigarettes causes only some or little harm, and 5%