Got a symptom but not sure what's causing it? Use our award-winning Smart Symptom Checker to find out – it's free!
e-cigarettes and vaping summary
E-cigarettes let you inhale nicotine as a vapour. Doing so is known as vaping. E-cigarettes aren't thought to be as harmful as normal cigarettes because they don’t release carbon monoxide or tar. But they do have their own health risks.