Respiratory diseases can be defined as conditions that impact the functioning of the lungs and affect other parts involved in the respiratory system like the nose, mouth, trachea etc. The reasons for the development of such diseases include age-related respiratory issues, pollutants in the environment, the genetic make-up of the body, smog, consumption of substances like tobacco and smoking, to name a few. Respiratory diseases cover chronic issues like allergy, asthma, pulmonary fibrosis, lung disorder, and lung cancer. The diseases can spread rapidly, starting from the sinuses, going up to your vocal cords and ultimately compromising the lungs.