Debunking 7 Myths About Secondhand Smoke Secondhand Smoke Vermont Department of Health Researchers Warn of Potential Harm From E Cigarette Secondhand Vapor AZPM Secondhand e cigarette aerosols expose kids to less nicotine than cigarettes, study finds, but can still be risky CNN ? () Although often promoted as safer than traditional cigarettes, e cigarettes still harm the body in many ways. 1. Health Risks Most vapes contain nicotine, Secondhand Smoke vs Vape: What the Science Says