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: The smoke from [[tobacco]] also has other dangerous [[chemical]]s inside that damage your health:
*[[Tar (Tobacco)|Tar]] - Which gets stuck in the [[mucus]] of the [[lungs]] damaging the [[cilia]] on the [[Ciliated Epithelial Cell|ciliated epithelial cells]].
*[[Carbon Monoxide]] - Which takes the place of [[Oxygen]] in [[Red Blood Cell|red blood cell]]s stopping your [[blood]] from carrying as much [[oxygenOxygen]] around the body. ==Key Stage 4=====Meaning===[[Smoking]] is when someone [[inhale]]s smoke from a [[cigarette]], [[cigar]] or [[pipe]]. ===About Smoking===: [[Smoking]] is a [[Risk Factor|risk factor]] in [[Lung Cancer]] and [[Coronary Heart Disease]].