Respiratory conditions refer to a range of diseases that affect the lungs and airways, making it difficult to breathe. Common examples include asthma, chronic obstructive pulmonary disease (COPD), and pneumonia. These conditions can result from various factors, including infections, allergies, and environmental pollutants. Symptoms of respiratory conditions often include coughing, wheezing, shortness of breath, and chest tightness. Diagnosis typically involves physical examinations, imaging tests, and lung function tests. Treatment options may include medications, lifestyle changes, and in some cases, oxygen therapy to help improve breathing and overall lung function.