Sagot :
Avoiding smoking is a very must the tobacco smoke has an very bad effect on our respiratory system include: irritation of the trachea (windpipe) and larynx (voice box) reduced lung function and breathlessness due to swelling and narrowing of the lung airways and excess mucus in the lung passages.
Explanation:
Smoking can cause lung disease by damaging your airways and the small air sacs (alveoli) found in your lungs. Lung diseases caused by smoking include COPD, which includes emphysema and chronic bronchitis. Cigarette smoking causes most cases of lung cancer
Smoking damages the heart and blood circulation, making it more likely that someone who smokes regularly will get heart disease or have a heart attack. Smoking can also make you feel more out of breath when you exercise, and make you more likely to get coughs and colds. By quitting smoking, you can: Lengthen your life expectancy. Decrease your risk of disease (including lung cancer, throat cancer, emphysema, heart disease, high blood pressure, ulcers and reflux, erectile and sexual dysfunction, kidney disease, and other conditions)