Vaping has “immediate” negative impacts on the body’s circulation, warn the authors of a new study —even when there is no nicotine in the cigarette. Despite commonly held beliefs that vaping is safer than traditional smoking,

"This study serves to highlight the acute effects smoking and vaping can have on a multitude of vascular beds in the human body," Dr. Nabbout said. "If the acute consumption of an e-cigarette can have an effect that is immediately manifested at the level of the vessels, it is conceivable that the chronic use can cause vascular disease."

Vaping has an immediate effect on how well the user's blood vessels work, even if the e-cigarette doesn't contain nicotine, according to new research.