Secondhand Smoke Tips to Navigate Life with a Smoker Secondhand Smoke Facts: Worse Than Smoking, Effects, and More 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. Secondhand Vape Exposure: Effects, Who's at Risk, and More Second hand vaping exposure very low compared to second hand smoking UCL News UCL University College London Secondhand Smoke vs Vape: What the Science Says