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"Smoking and Tobacco chewing is injuriou...

"Smoking and Tobacco chewing is injurious to health" - Comment on the statement.

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Tabacco is smoked,chewed and used as snuff.It increases the carbon monoxide content of blood and reduces the concentration of haem bound oxygen,thus causing oxygen deficiency in the body.Tobacco contains nicotine,carbon monoxide and tars,which cause problems in the heart ,lung and nervous system.Adrenal glands are stimumlatemd by nicotine to release aderenaline and nor adernaline which increases blood presure and heart beat.
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