That big claim that vaping leads to smoking may be based on insubstantial evidence Smoke and Mirrors: Truth Initiative Conceals Benefits of Vaping American Council on Science and Health No scientific evidence that E Cigarettes are less harmful: Health Experts, ETHealthworld The impact of e cigarette exposure on different organ systems: A review of recent evidence and future perspectives ScienceDirect Most e cigarettes contain nicotine, which is highly addictive. Putting maximum limits on the nicotine strength of e cigarettes, along with evidence based tobacco control strategies, may help reduce youth e cigarette use and increase quitting