The makers of e-cigarettes say that the ingredients are “safe,” but inhaling a substance is not the same as swallowing it. There are questions about how safe it is to inhale some substances in the e-cigarette vapor into the lungs. E-cigarettes are not labeled with their ingredients, so the user doesn’t know what’s in them. The amounts of nicotine and other substances a person gets from each cartridge are also unclear.

A study done by the FDA found cancer-causing substances in half the e-cigarette samples tested. Other impurities were also found, including one sample with diethylene glycol, a toxic ingredient found in antifreeze.

Studies have shown that e-cigarettes can cause short-term lung changes that are much like those caused by regular cigarettes. But long-term health effects are still unclear. This is an active area of research, and the safety of these products is currently unknown.

Read More: http://www.cancer.org/cancer/cancercauses/tobaccocancer/questionsaboutsmokingtobaccoandhealth/questions-about-smoking-tobacco-and-health-e-cigarettes

I also found this interesting article, but didn’t want to quote it because it didn’t reference a date of when it was posted: http://www.webmd.com/smoking-cessation/features/ecigarettes-under-fire

Photo by Nena Barlow

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