(CNN) – A new study found e-cigarette flavors can damage cells in your blood vessels, and even lead to heart problems.
The study, published in the Journal of the American College of Cardiology, included six e-liquids with varying nicotine concentrations.
Researchers found that cells that came in contact with the fluids had poorer survival and increased inflammation.
The effects varied between flavors, with cinnamon being the most potent.
Some policy makers are trying to ban vaping flavors, saying they can get people hooked on nicotine early in life, and may be a gateway to smoking and other drugs.
Advocates say vaping is an important tool in getting adults to switch from combustible cigarettes.