Yes they are and we need it on our body
When a person smokes a cigarette, the body responds immediately to the chemical nicotine in the smoke. Nicotine causes a short-term increase in blood pressure, heart rate, and the flow of blood from the heart. It also causes the arteries to narrow. Carbon monoxide reduces the amount of oxygen the blood can carry.
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Always inspect your food before you eat it or otherwise you could get a disease like that. Hope this helps
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