Vapers have been largely reassured by recent EU safety regulations, but some have been pushed to the black market for stronger hits - according to new research from the University of East Anglia.

Researchers studied reactions to vaping legislation. [...] The study reveals how, from a consumer perspective, future regulation should not further restrict liquid or tank volumes and nicotine concentration, but should focus on ensuring e-liquid product safety.

Lead researcher Dr Emma Ward, from UEA's Norwich Medical School, said: "Switching to vaping is now the most popular way for people to stop smoking in the UK.