Vaping while pregnant isn't harmlessstudy uncovers risks to newborn lung health Your Children Are Adversely Affected by Your Secondhand Smoke! TEIS, Inc Secondhand smoke may be a substantial contributor to lead levels found in children and adolescents, new study finds Women who vape are more likely to have low birthweight babies, study shows UCLA Animal Study Shows Harmful Effects of Secondhand Smoke Even Before Pregnancy Duke Health