miércoles, 3 de septiembre de 2014 – 1 de septiembre de 2014 – EEUU

E-cigarettes: Six things you may not have known (or considered) about the growing phenomenon

Smoking kills. We've all known this for at least 50 years -- and yet millions still light up, while thousands more pick up the habit every year.

Why? Addiction.

Nicotine is a powerful drug that speeds up the brain and central nervous system. The toxic colourless oily liquid triggers the release of a chemical in your brain (dopamine) that boosts your mood, makes you feel calm, and at the same time, makes you feel more alert.

According to the Canadian Lung Association, over time, a smoker’s brain adjusts to the "buzz" from nicotine and lowers their natural energy level or mood. That's when they may start to crave another cigarette for a boost...and so the cycle continues for months, and for most, years.

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