A DAILY puff on an e-cigarette is twice has likely to lead to a heart attack than not smoking at all, new research has found.
Millions of Brits now get their nicotine hit via e-cigarettes, and they are growing in popularity, but the study suggests vapers might still be at risk from a heart attack.
The research also shows vapers who smoked traditional cigarettes before switching to e-cigarettes are three times as likely to suffer a heart attack as someone who has never smoked.
But the risk is highest for people who combine smoking tobacco and vaping, according to figures from the University of California, San Francisco.
They are more than four and a half times more likely to have a heart attack as someone who has never smoked or vaped.
The researchers found a quarter of the vapers in the study were former smokers, while 66 per cent used both e-cigs and conventional cigarettes.
People who smoke every day but do not vape are 2.72 times more at risk of having a heart attack while ex-smokers who do not vape are 1.7 times more at risk.
‘Most adults who use e-cigarettes continue to smoke cigarettes,” said study author Dr Stanton Glantz said.
“While people may think they are reducing their health risks, we found that the heart attack risk of e-cigarettes adds to the risk of smoking cigarettes.
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“Using both products at the same time is worse than using either one separately.”
The researchers also say e-cigarettes might be more damaging that though but haven’t been around long enough to do any serious damage to a users’ hearts.
‘The only way to substantially reduce the risk of a heart attack is to stop using tobacco,” said Dr Glantz.
Previous research has found e-cigs boost the production of inflammatory chemicals in the body.
The vapour has also been found to kill protective cells in the lung that keep the air spaces clear of harmful bugs.