smoking and associated hazards

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everyday we see a lot of people flaunting a cigarette and they think it makes them look cool.some even say it relieves stress.but the truth is that its a slow poison. actually,nicotine present in tobacco/cigarette smoke acts first as a stimulant but soon it follows a period of depression.this phase of depression compels the person to smoke another cigarette and the chain continues.this becomes a habit then turns into an addiction which is very difficult to leave. cigarette smoke contains more than 200 different chemicals which can produce cancer.its not that it only causes lung cancer,other cancers include oral cancer,cancer of esophagus,stomach,colon,urinary bladder.it also weakens the normal defense mechanism of our body,so that it makes us prone to different infections especially respiratory infections.it can also precipitate an attack of asthma in asthmatics. any other suggestions about the hazards of smoking r welcome.....