Our lungs work around the clock, pumping up to 20,000 liters of air every day — the equivalent of an entire tanker truck. But this constant exposure makes them vulnerable. Air pollution, viruses, and bacteria can enter the lungs directly, increasing the risk of respiratory disease. A persistent cough is often the first warning sign. But is it just a harmless infection — or something more serious like asthma or even lung cancer? In this episode of In Good Shape, we look at common lung diseases, early symptoms to watch for, and how exercise can strengthen lung function. We also explore whether singing and breathing exercises can improve respiratory health.