"We have such a massive opportunity here," says
Robert West, professor of health psychology and director of tobacco studies, at University College London's department of epidemiology and public health. "It would be a shame to let it slip away by being overly cautious.
E-cigarettes are about as safe as you can get. We know about the health risks of nicotine from studies in Sweden into the use of
"Snus", a smokeless tobacco. Nicotine is not what kills you when you smoke tobacco.
E-cigarettes are probably about as safe as drinking coffee. All they contain is water vapour, nicotine and propylene glycol [which is used to help vaporise the liquid nicotine]."