Key points from article :
Smokers can improve cardiac health within weeks of switching to e-cigarettes.
Monitored people's blood vessels a month after switching to e-cigarettes.
Vascular function improved significantly, within a month compared to those who continued to smoke.
Therefore vaping has the potential to reduce heart attack and stroke risk to a certain extent.
But it did not restore vascular function back to normal.
Refraining from all forms of smoking is the best course of action to protect the heart.
The month-long trial involved 114 smokers.
Research by University of Dundee, published in the Journal of the American College of Cardiology.
