E Cigarettes: Know the Health Risks Department of Health Analysis suggests e cigarette use may be linked to lower rates of smoking Vaping is NOT Harmless. Know the long term effects before it's too late! Most e cigarette liquids contain high levels of nicotine, which is highly addictive. Despite the legal age being 21, vaping devices Electronic cigarettes: Help or hazard? Harvard Health The impact of e cigarette exposure on different organ systems: A review of recent evidence and future perspectives ScienceDirect E cigarettes: An Emerging Public Health Challenge