Tobacco smoke irritates the mucous membrane of the pharynx, larynx, trachea, and, as a rule, leads to chronic inflammation of the upper respiratory tract and impaired function of the vocal apparatus. Nicotine adversely affects the cilia of the bronchial mucosa. They become unable to move dust particles and lumps of mucus accumulated in the trachea, which irritate the trachea and cause a protective reaction – cough.
Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.