, 7). Only 25 percent of the nicotine in a cigarette is actually inhaled by the smoker the other 75 percent is put into the air. Carbon monoxide replaces the oxygen in the body, which reduces the amount of available oxygen in the body and hinders muscle action and mental function (Health-touch, 5).
             It takes an average of twelve minutes for one cigarette to burn to the filter, only thirty seconds is actually spent by
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