Vaping may damage the heart just as smoking does
Switching from smoking to vaping may not help with cardiovascular health. Researchers performed tests on the vascular systems of more than 400 healthy adults aged 21 to 45. Study participants who use cigarettes, e-cigarettes or both had stiffer arteries than those who did not smoke or vape, the researchers report online April 29 in the Journal of the American Heart Association. That stiffness can damage small blood vessels and strain the heart, both of which can contribute to the development of cardiovascular disease, says Jessica Fetterman, a vascular biologist at Boston University School of Medicine. Fetterman and colleagues also collected participant samples of cells lining the blood vessels, and exposed those cells to a fluorescent dye that detects nitric oxide, a molecule that dilates blood vessels and helps stop blood from clotting. Cells taken from smokers and vapers produced less nitric oxide than cells from participants who did not smoke or vape, a sign that smokers’ and vapers’ blood vessels may not be functioning normally....