Chair of the European Respiratory Society Tobacco Control Committee, said: “The damage caused by smoking traditional cigarettes, including the effects of nicotine on the body, are well-known. E-cigarettes are relatively new, so we know much less about what they do to the body.
“This study suggests that e-cigarettes containing nicotine can make clots form in users’ blood and make their small blood vessels less adaptable.
“This is a small study, so we’d like to see more research looking at these effects.
“Some people may use e-cigarettes when attempting to quit smoking because they are marketed as being safe, but this study adds to the growing evidence on the harmful effects of e-cigarettes.