It’s been 10 years since electronic cigarettes hit the shelves in a big way - and since there controversy has reigned about their health effects - are they less unhealthy than smoking traditional tobacco cigarettes, and will they increase nicotine dependence?

Its to that last point that new research, published on BMJ.com is looking into - specifically, do e-cigarettes help people quit tobacco?

Professor Shu-Hong Zhu, Director of the Center for Research & Intervention in Tobacco Control at the university of California San Diego joins us to discuss what effect ecigarettes have had, at a population level, on smoking cessation rates.

Read the open access research:
http://www.bmj.com/content/358/bmj.j3262