Effectiveness of electronic aids for smoking cessation.

Tobacco use continues to be the leading cause of preventable death in the world, and though current evidence-based approaches have substantially reduced rates of smoking, these rates remain disturbingly high. Two recent technological advancements, the electronic cigarette (e-cigarette) and mobile health (mHealth) interventions, may offer smokers an alternative way to quit smoking. E-cigarettes continue to be fiercely debated. Preliminary evidence suggests that e-cigarettes are likely much safer than regular cigarettes and are helpful to some smokers as a means of reducing or quitting smoking. Questions, however, still remain as to how they will affect overall public health-if they will be used as a "gateway" product or reduce motivation to quit smoking, to name but a few. Similarly, mHealth interventions appear to be effective and accepted by users. However, mobile 'apps' have yet to be tested in randomized trials and there are concerns about violations of users privacy and state jurisdictions.