Low-tar or 'lite' cigarettes impair blood flow through the heart just as much as normal cigarettes, experts have warned.
Many smokers switch to cigarettes with low tar and low nicotine, believing they can reduce the risks.
But, writing in the journal Heart, experts said they had studied comprehensively for the first time the cardiovascular effects of light cigarettes.
They found that blood pressure and heart rate both increased after lighting up, irrespective of the type of cigarette smoked.
Blood flow through the arteries was also impaired in smokers of both light and normal cigarettes.
Source: Sky News