Are They Safer?

April 4, 2014 2:53 AM

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An e-cigarette is a cigarette-shaped, battery-powered tube containing a cartridge with a liquid solution of propylene glycol and/or vegetable glycerin plus nicotine inside. Puffing (called “vaping”) on an e-cig, activates a heating device, which warms the nicotine-containing liquid inside the cartridge, which produces the vapor. The e-cigs contain far less nicotine than regular cigarettes, although the doses may be different between e-cigarette brands. The nicotine from e-cigs goes to the brain quickly, producing a brief relaxation and slight mood elevation. The nicotine is metabolized or excreted, but because the influx of nicotine causes elevated production of nicotinic receptors, the body demands another cigarette.

Five million deaths a year are attributed to tobacco use worldwide. Nicotine has been conclusively linked to a higher risk of heart disease. Until the advent of e-cigarettes, cigarettes were traditionally just tobacco rolled in paper. If it were still possible to smoke pure tobacco, probably this d...

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