Is Vaping Better Than Smoking? American Heart Association Smoking and Lungs: Understanding the Impact on Breathing and Your Options SMOKO E Cigarettes Secondhand smoke and secondhand aerosol Health Problems Caused by Secondhand Smoke Smoking and Tobacco Use CDC ? () Although often promoted as safer than traditional cigarettes, e cigarettes still harm the body in many ways. 1. Health Risks Most vapes contain nicotine, Frequently Asked Questions Thirdhand Smoke Resource Center