Electronic cigarettes, commonly known as e-cigarettes, deliver nicotine without the tar and smoke of traditional tobacco cigarettes. But doctors say they still carry risks.
Researchers know that the nicotine contained in cigarettes constricts blood vessels. However, they don’t yet know the cumulative damage e-cigarettes cause to your heart, lungs and blood vessels. Many experts urge everyone — heart patients in particular — to avoid smoking any product, including e-cigarettes.
E-cigarettes produce an inhaled vapor from a flavored liquid which contains nicotine, simulating the effect of smoking. Preliminary studies suggest nicotine might do direct damage to heart cells, so heart patients should avoid vaping or smoking traditional tobacco products completely.