Secondhand Vaping: E Cigarettes Pose a Risk to More Than Just the User Eastburn Hypnotherapy Center Denver, CO Being Exposed to Secondhand Smoke Increases the Risk of Cancer and Other Diseases. StoryMD Toxic Thirdhand Smoke Residue Reaches Many Children Even in Nonsmoking Homes Research Horizons 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.