E-cigarettes: Helping smokers quit, or fueling a new addiction?

March 24, 2015 12:55 PM

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Vital Signs is a monthly program bringing viewers health stories from around the world.

(CNN)It's a portable piece of technology providing seemingly bottomless access to a drug craved by more than 1 billion people worldwide -- nicotine. That craving is caused by smoking tobacco but is now being increasingly satisfied by e-cigarettes and the trend to "vape" instead of smoke.

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