Researchers from Onassis Cardiac Surgery Center in Greece have found that while smoking just 2 tobacco cigarettes caused significant stiffening of the aorta, no difference was observed after the use of an e-cigarette by smokers and vapers.
Published December 2013.
http://www.ecigarette-research.com/EUROECHO2013-ecigs.pdf
Published December 2013.
http://www.ecigarette-research.com/EUROECHO2013-ecigs.pdf