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Comparatively, 35% started smoking when they were 16 or 17, and 35% started at 18 or older

"What complicates this even more is that when these chemicals burn, they form other chemicals that may have additional effects on health." While tobacco companies like RJ Reynolds insist that a lot of the ingredients found in cigarettes are also found in Food and Drug Administration-approved foods and beverages, a few of these ingredients are also found in products that you would never think to put in your body otherwise

However, a national outbreak in 2019 of electronic-cigarette, or vaping, product use-associated lung injury (EVALI) that led to 2,807 hospitalizations and 68 deaths as of February 20201 suggests that while the harms may be different, they can be no less deadly

J Periodontal Res