Long-term harms of vaping could be revealed in a new Government-backed trial of e-cigarettes. The study will now start recruiting 200 people looking to quit smoking and 40 never-smokers for the most detailed ever look at how vaping affects the respiratory system over the course of a year. The NHS is still promoting e-cigarettes as a quitting tool but there are growing concerns about youngsters who have never smoked taking up vaping. The well established research on tobacco harms built up over