Forty states have enacted laws prohibiting the sale of electronic nicotine delivery systems (ENDS), including e-cigarettes, to minors, but 10 states and the District of Columbia still permit such sales, according to a report published by the Centers for Disease Control and Prevention in a recent Morbidity and Mortality Weekly Report (MMWR).

Although electronic cigarettes are being aggressively promoted as tools that can help people quit smoking, scientific studies are not bearing that out. A report published recently in JAMA Internal Medicine noted that the effectivenss of e-cigarettes (or electronic nicotine delivery systems) in smoking cessation efforts has been “unconvincing” in studies conducted so far.