Your lungs are vital for providing your body with fresh oxygen while ridding it of carbon dioxide. This process is called gas exchange. In some individuals, such as those with chronic obstructive ...

We need to get oxygen from the air into the blood, and we need to remove waste carbon dioxide from the blood into the air. Moving gases like this is called gas exchange. As the blood moves through the ...

New imaging reveals how subtle lung changes may influence sleep and brain activity years after COVID, offering clues to why symptoms persist even when routine tests look normal. Even without ...

Doctors use lung diffusion tests to measure how well a person’s lungs exchange oxygen and carbon dioxide. The test can detect lung damage and help diagnose lung conditions, including emphysema and ...

We know ozone is bad for our lungs – the increased risk of developing diseases such as asthma was one of the reasons people wore face masks during January’s record-breaking smog in China. But exactly ...

What Is an Arterial Blood Gas Test (ABG)? An arterial blood gas (ABG) test measures oxygen and carbon dioxide levels in your blood. It also measures your body’s acid-base (pH) level, which is usually ...

The cells in the body need oxygen to release energy from food efficiently by carrying out aerobic respiration. A waste product of aerobic respiration is carbon dioxide. The layer of moisture in the ...