We all need to breathe. Bringing new air into the body and getting rid of old air and wasted gas is an essential part of daily life. The lungs are a key part of this necessary task. The lungs are part ...

Alveoli are tiny air sacs in your lungs that take up the oxygen you breathe in and keep your body going. Although they’re microscopic, alveoli are the workhorses of your respiratory system. People ...