Electronic cigarettes are touted by some as safer than smoking tobacco.
But a new study finds they damage blood vessels just like traditional
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Among hundreds of healthy young adults, researchers found that
vaping and smoking cigarettes cause the same harm to arteries that leads
to heart attacks, strokes and heart disease.



"The evidence is growing that e-cigarettes may not be a reduced harm
product when it comes to heart disease," said lead researcher Jessica
Fetterman, an assistant professor of medicine at Boston University
School of Medicine.



Abnormalities in artery stiffness persist in e-cigarette users, and
no evidence shows that e-cigarette use reduces cardiovascular injury,
dysfunction or harm associated with the use of combustible tobacco
products, the study authors said.



For the study, Fetterman and her colleagues collected data on more
than 400 men and women, aged 21 to 45, without heart disease or risk
factors for heart disease.



Ninety-four were nonsmokers, 285 smoked traditional cigarettes, 36
used e-cigarettes and 52 used both traditional and e-cigarettes. All of
the e-cigarette users had smoked tobacco in the past.



Fetterman's team found that smokers who switched to e-cigarettes and
those who smoked cigarettes and also vaped had stiffening of the
arteries. This can damage small blood vessels and lead to heart disease.



The investigators also found that endothelial cells, which line
blood vessels, had the same degree of damage whether people used
e-cigarettes, traditional cigarettes, or both.



Fetterman said longer-term research is needed to study whether arterial damage from e-cigarettes alone changes over time.



Stanton Glantz is a professor of medicine at the University of
California, San Francisco's Center for Tobacco Control Research and
Education. He said, "Adults take e-cigarettes up because they think
they're not as dangerous as tobacco cigarettes. But what this study is
showing is that in terms of these very important measures of vascular
function, they are basically the same as a cigarette."



Glantz thinks it's time for the U.S. Food and Drug Administration to
take action to warn people of the dangers of vaping.The FDA has been
completely asleep at the switch on this," said Glantz, who wasn't
involved in the new study.



The FDA still clings to the idea that e-cigarettes are better than tobacco cigarettes, Glantz said.



"Everybody thought, including me, that because you didn't have combustion, e-cigarettes had to be a lot better," he added.



But this study and others show that, even though there's no
combustion, vaping floods the body with chemicals that cause the same
harm as regular tobacco cigarettes, Glantz said.