In the BBC documentary Ecigarettes: Miracle or Menace, Michael Mosley investigates the dramatic rise of electronic cigarettes.
E-cigarettes are everywhere these days, but what does the latest scientific research on them reveal? Are they really better for you than cigarettes? What is actually in them? Is passive vapour harmful? And can they really help stop you from smoking? Michael meets some of the scientists around the world studying e-cigarettes and their effects. He asks a group of volunteers to try to give up smoking regular cigarettes by using them, and even takes up vaping himself. Using an e-cigarette every day for a month he documents his journey to see the effects on his own health. No easy task for a committed non-smoker.