E-cigarette smoking linked to heart disease risk High adrenaline levels, oxidative stress seen in comparison with nonsmokers By Elizabeth Eaton 5:18pm, February 1, 2017 https://www.sciencenews.org/article/e-cigarette-smoking-linked-heart-disease-risk Electronic cigarettes may increase the risk of heart disease, researchers at UCLA report. The team found that two risk factors for heart disease were elevated in 16 e-cigarette users compared with 18 nonsmokers. “The pattern was spot-on” for what has been seen in heart attack patients and those with heart disease and diabetes, says cardiologist Holly Middlekauff, a coauthor of the study published online February 1 in JAMA Cardiology.