About one in five people who have stopped smoking for more than a year in England currently vape, equivalent to 2.2 million people, according to a new study led by UCL researchers. The study, published in the journal BMC Medicine and funded by Cancer Research UK, found that this increased prevalence was largely driven by greater use of e-cigarettes in attempts to quit smoking. However, the researchers also found a rise in vaping uptake among people who had already stopped smoking, with an