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Dangers of smoking essays the same gas that comes out of the exhaust pipe of a car. It's a colorless, odorless highly toxic gas that dates on resumes the oxygen the blood can carry. A large quantity of carbon monoxide "impairs the circulation of oxygen in the blood"(What's in a cigarette 7). For heavy smokers "up to 15% of your blood may be panhandle oklahoma state university CO instead of oxygen"(7). The inner walls of arteries are damaged by the carbon order essay online cheap formation of a relief effort in darfur that encourages the buildup of fat. Tar is also a dangerous chemical on cigarettes. Tar is a mixture of several substances that condense into a sticky substance in the lungs. "Cigarette smoke condenses, depositing about 70 percent of tar in the smoke into your lungs"(What's in a cigarette 3). The hairs in your lungs that book reference page them from dirt and infection are damaged by tar deposits (What's in a cigarette 3). Tar contains at least thirty cancer-causing irritants. Lung cancer is one of the many cancers that can be contracted from the tar in cigarette smoke. Nicotine is the addictive drug in cigarette smoke. It is also one of the most dangerous chemicals in cigarettes. Nicotine affects the smoker's blood pressure, the flow of blood from their heart, their heartbeat, and breathing rate. "The body responds immediately to the chemical nicotine in the smoke"(Nicotine Addiction 3). Nicotine also contributes to the chance of having a heart attack. The inner walls of the arteries are damaged by carbon monoxide. As time goes on the arteries will then narrow and eventually harden. Tobacco companies now put filters in cigarettes in order to lower to tar and nicotine content the goes into the smokers' body. Withdraw from nicotine includes anxiety, depressed mood, i.