lung function

Lung function refers to how well your lungs work to take in air and deliver oxygen to your body. When you breathe, your lungs fill with air, and oxygen from that air enters your blood while carbon dioxide is removed and exhaled. Good lung function is essential for overall health, as it supports physical activity, energy levels, and organ function. Lung capacity can be measured through tests, which assess how much air your lungs can hold and how effectively air is exchanged. Conditions like asthma or COPD can impair lung function, making breathing difficult.