Vaping in pregnancy is harmful for babies and mothers: study Folio While vaping is not risk free, it is less harmful than tobacco Our World in Data Is Vaping Better Than Smoking? American Heart Association Nicotine products in any form, whether from cigarettes, vaping or chewing tobacco, pass into a mother's bloodstream and through the placenta to the growing baby. Quitting nicotine is hard for many people, Animal Study Shows Harmful Effects of Secondhand Smoke Even Before Pregnancy Duke Health Tobacco Smoke, Vaping, and Asthma AAFA.org