No.

"This is the first study to examine the acute effects of electronic cigarette use on myocardial function. No adverse effects on LV [left ventricular] myocardial function were observed after using electronic cigarette with nicotine-containing liquid for 7 minutes. On the contrary, significant changes in diastolic function parameters were found after smoking 1 tobacco cigarette."

The Rest of the Story

This study, although limited to only three brands of electronic cigarettes, provides reassuring evidence that there do not, at present, appear to be major concerns about substantial health hazards associated with secondhand exposure to electronic cigarettes.

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