Smoking and drug use as dangerous because both are equally able to cause chemical changes in the brain in the long run, causing brain damage. In cigarette smoke, contained 4000 chemical substances, and at least 200 of them were declared hazardous to health. The main toxins from cigarettes is nicotine, tar and carbon monoxide. Nicotine is the addictive substances, which affect the nervous and circulatory, are carcinogens, and capable of triggering lung cancer is lethal. Tar is the substance a hydrocarbon that is sticky and stuck to the lungs, is karsiogenik. And carbon monoxide, are substances that bind to hemoglobin in the blood, making the blood is unable to bind to oksigen1. Toxins and carcinogens that arise as a result of burning tobacco can be triggered in cancer. At first, anyway, cigarettes contain 8-20 mg of nicotine and nicotine burn after it goes into blood circulation is only 25%. Although the numbers are small, but the substance turned out to be only takes 15 minutes to get to the human brain.
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