If your friend is addicted to cigarette smokingas a biology student how would you explain the ill-effects of smoking?

Explanation

Research says about 80% of the lung cancer is due to c igarette smoking. Smoking is inhaling the smoke from burning tobacco.
2. There are thousands of known chemicals which include nicotine, tar, carbon monoxide, ammonia, sulphur- dioxide and even small quantities of arsenic.
3. Carbon monoxide and nicotine damage the cardiovascular system and tar damages the gaseous exchange system.
4. Nicotine is the chemical that causes addiction and is a stimul ant which makes the heart beat faster and the narrow ing of blood vessels results in raised blood pressure and coronary heart diseases.
5. Presence of carbon monoxide reduces oxygen supply.
6.Lung cancer, cancer of the mouth and larynx is more common in smokers than non- smokers.
7. Smoking also causes cancer of the stomach,pancreas and bl adder and lowers sperm count inmen.
8. Smoking can cause lung diseases by damaging the airways and alveoli and res ults in emphysema and chronic bronchitis.
9. These two diseases along with asthma a re often referred as Chronic Obstructive PuImonary Disease (COPD) .