Doctors with the American Heart Association are warning that e cigarettes with nicotine may be linked to increased blood pressure and heart rate, while research on flavored vapes has found a risk of E cigarettes: How they work, risks, and research Infographic: E cigarettes & Cardiovascular Disease World Heart Federation Does Vaping Cause High Blood Pressure? TwentyFourHour Cardiovascular Effects of Electronic Cigarettes Compared With Cigarette Smoking in Dual Users Journal of the American Heart Association Vaping Raises Blood Clotting Risks, Harms Small Arteries: Study Southern Iowa Mental Health Center