E-cigarettes are 95% less harmful than tobacco and could be prescribed on the NHS in future to help smokers quit, a review of their use has concluded. Experts who have compiled a report for Public Health England say "vaping" could be a "game...

The number of people who use electronic cigarettes in the UK has tripled over the past two years to 2.1 million, a health charity estimates. It says just over half of current or ex-smokers have now tried electronic cigarettes, compared with 8% in...