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Quick Answer While cigarettes do have a shelf life, it is important to understand the factors that contribute to their expiration and the potential risks of smoking expired cigarettes

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With respect to cytotoxicity, a dose response was reported and it was suggested that the nicotine level in the saliva of smokeless tobacco users may be high enough to achieve cytotoxicity

You feel like nothing bad can come from a piece of lettuce but you are wrong, it takes at least 25 years for lettuce to decompose in a land fill

Research goes further to suggest that the use of e-cigarettes may lead to endothelial dysfunction, a precursor to cardiovascular diseases