... sputum for the next few hours. The nicotine relaxes the muscles in the bronchial walls keeping them at the right tension. It also reduces muscle tension in other parts of the body, reducing tension on the arteries, therefore reducing high blood pressure and heart disease. It also reduces the appetite, there for reducing obesity. Nicotine improves concentration in periods of long-lasting stress and satisfies people in bad temperaments. Why Smoking is Bad for You Many experts claim and have proof that smoking is very bad for you. Smoking involves the burning of tobacco in a pipe, cigar, or cigarette. The reason smokers feel relaxed smoking is because the nicotine in tobacco is a very addictive alkaloid. In the U.S.A alone tobacco use kills 420,000 smokers each year. Nicotine has been proven to affect the chemistry of the brain. Information is transmitted in the brain between nerve cells by the chemical ...

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