Recent studies are shining a light on the increasingly negative effects of electronic cigarettes and vaping.

According to an American Heart Association release, researchers found cholesterol, triglycerides and glucose levels were all adversely affected in those who use e-cigarettes.

One study, where the heart blood flow of 19 smokers between the ages of 24 and 32 was measured before and after smoking either conventional or e-cigarettes, revealed a surprising discovery involving coronary vascular function.

Researchers discovered that blood flow was not only altered in those who smoke e-cigarettes, but "the effect might be worse than from smoking traditional cigarettes," the release said.

“In smokers who use traditional cigarettes, blood flow increased modestly after traditional cigarette inhalation and then decreased with subsequent stress. However, in smokers who use e-cigs, blood flow decreased after both inhalation at rest and after handgrip stress,” said study author Dr. Florian Rader in the release.

Dr. Rose Robertson, AHA's deputy chief science and medical officer, says more research is needed about e-cigarettes. The findings of the studies will be discussed at a global conference in Philadelphia Nov. 16-18.  

Copyright 2019 KTVA. All rights reserved.