Respiratory diseases are conditions that affect the lungs and airways, making it difficult to breathe. Common examples include asthma, chronic obstructive pulmonary disease (COPD), and pneumonia. These diseases can be caused by various factors, including smoking, pollution, and infections. Symptoms often include coughing, wheezing, and shortness of breath. Preventing respiratory diseases involves maintaining a healthy lifestyle, such as avoiding tobacco and staying active. Regular check-ups with a healthcare provider can help catch problems early. Treatments may include medications, inhalers, or therapies to improve lung function and overall health, allowing individuals to breathe easier and live better lives.