Introduced in 2006, E-cigarettes do not contain tobacco and do not involve combustion, hence are perceived to be better than the conventional ones. But doctors say, it still carries risk. E-cigarettes still contain the addictive nicotine and some of the chemicals found in regular cigarettes that affect the cardiovascular health. Doctors know that the nicotine contained in cigarettes constricts blood vessels.
However, researchers don’t yet completely know the cumulative damage e-cigarettes cause to the heart, lungs and blood vessels. Many experts urge everyone — heart patients in particular — to avoid smoking any product, including e-cigarettes. In 2009, the U.S. (FDA) warned that e-cigarettes contain "detectable levels of known carcinogens and toxic chemicals to which users could be exposed." E-cigarettes produce an inhaled vapor from a flavored liquid which contains nicotine,…
