Animal Study Shows Harmful Effects of Secondhand Smoke Even Before Pregnancy Duke Health Don't Be Fooled, E cig Aerosol Is Not Harmless for Kids American Lung Association Does Vaping Cause Secondhand Smoke? 9 of the Worst Diseases You Can Get from Secondhand Smoke State of Tobacco Control American Lung Association Women who vape are more likely to have low birthweight babies, study shows UCLA Debunking 7 Myths About Secondhand Smoke