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The condition is caused by long-term exposure to irritants such as smoke, leading to irreversible lung damage
Sugar is also added to make the resulting cigarette less harsh, but this addition leads to the formation of acetaldehyde, which is a type of carcinogen that enhances the addictiveness of nicotine
Voicechovski recommends quitting smokingor better yet, dont start
Bill Godshall, executive director of SmokeFree Pennsylvania and a longtime campaigner for smoking bans in public places, theorizes that e-cigs are "at least 99 percent less hazardous than cigarettes and there's no smoke, so nonsmokers don't get harmed." Critics, including the FDA and the American Cancer Society, see e-cigs as having some toxic properties and risky until proved benign