What is the difference between obstructive and restrictive lung diseases

Here's the difference between obstructive and restrictive lung diseases: Obstructive lung diseases are characterized by difficulty exhaling air due to narrowed or blocked airways. This leads to air trapping and an increase in residual volume and total lung capacity. Examples include asthma, COPD (emphysema and chronic bronchitis), and cystic fibrosis*. The primary issue is reduced airflow, especially during forced exhalation. Restrictive lung diseases are characterized by difficulty inhaling air due to stiffness of the lungs or chest wall, or weakness of respiratory muscles. This results in a reduction in total lung capacity and vital capacity. Examples include pulmonary fibrosis, sarcoidosis, and conditions like scoliosis or neuromuscular diseases*. The primary issue is reduced lung volumes. In essence, obstructive diseases make it hard to get air out, while restrictive diseases make it hard to get air in. That's 2 down. 3 left today — send the next one.