If you're a smoker trying to kick the habit, you may be intrigued by e-cigarettes. These electronic devices have helped millions of users to quit smoking tobacco cigarettes. They get their nicotine fix, but avoid the deadly toxins. Are e-cigarettes safe?

Electronic cigarettes, known as e-cigarettes, are battery operated nicotine-delivery devices. They contain a liquid laced with nicotine that vaporizes when heated. The vapor can be inhaled, simulating the effect and the experience of smoking. E-cigarettes are used by millions throughout the world as an alternative to smoking.

"Nicotine is highly addictive and it does not do your body good. But there are pros to getting away from the burning combustibles that are on fire when you light a cigarette," said Valerie Frey-McClung, Assoc. Director, WVU Prevention Research Center.

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