Facebook page MEDspiration posted footage of an air hose being used to inflate dead sheep and cow lungs, to give an example of how rapidly the lungs expand when humans take a deep breath.

Box breathing is a deep breathing technique that can help lower blood pressure and aid in pain or COPD management. It’s also a powerful stress reliever and may help manage anxiety. Box breathing ...

This typically causes symptoms like: coughing spells that bring up mucus or phlegm ... This test measures how much air you exhale. You take deep breaths into a tube that a computer monitors ...