Just one puff of an e-cigarette could be all it takes to increase the risk of a heart attack, new research suggests.
After just five minutes of vape exposure, mice's arteries narrow by 30 percent within an hour, a study found.
Their blood vessels are also less able to dilate, which is required to lower blood pressure, the research adds.
Previous research reveals narrow arteries can result in heart attacks or stroke.
Results reveal that mice's arteries narrow by 30 percent within an hour of a five-minute exposure to e-cigarette vapor.
Their arteries' ability to dilate, and consequently lower blood pressure, is also diminished.
When exposed to long-term e-cigarette use, mice develop arteries that are more than twice as stiff as those not given any nicotine.
