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 changer” for persuading people to quit cigarettes.
They also say there is no evidence they give children a “gateway” into smoking.
Some health campaigners have welcomed the findings, but the British Medical Association has expressed caution.