5 Vaping Facts You Need to Know Johns Hopkins Medicine Secondhand smoke and secondhand aerosol ? () Although often promoted as safer than traditional cigarettes, e cigarettes still harm the body in many ways. 1. Health Risks Most vapes contain nicotine, How to Smoke E Cigarettes Your First Vaping Guide SMOKO E Cigarettes Vaping Around Babies How Secondhand Vapor Smoke Can Harm Kids Does Vaping Cause Secondhand Smoke?