Sir: All lungs disorders are aggravated by smoking. Smoking is the single most preventable cause of death in modern society. Tobacco smoke is injurious for the lungs in two ways. It contains tiny particles and tar that damage and clog up the airways and it contains toxic gases such as carbon monoxide and oxides of nitrogen. Respiratory diseases can arise from a number of causes such as smoking. Also lungs disease can cause by smoking. Lungs disease is that where lungs does not work properly. Many illnesses, such as colds and influenza, can occur by smoking, so we can see how dangerous smoking is for our health. I appeal to everyone to avoid such toxic things.Qasim Jan KechPublished in Daily Times, December 30th 2017.