Health Problems Caused by Secondhand Smoke Smoking and Tobacco Use CDC Asthma and Allergy Foundation Tobacco can be bad for your health even if you are not the one smoking. Breathing in the smoke can lead to many health problems. Vaping is The risks of vape pens' secondhand aerosols Does Vaping Cause Second Hand Smoke V2 Cigs UK Don't Be Fooled, E cig Aerosol Is Not Harmless for Kids American Lung Association ? () Although often promoted as safer than traditional cigarettes, e cigarettes still harm the body in many ways. 1. Health Risks Most vapes contain nicotine,