04/03/2026
The Lungs & Why They Matter
What Are the Lungs?
The lungs are two spongy organs located in your chest. They are responsible for breathing—bringing oxygen into the body and removing carbon dioxide.
Without healthy lungs, every organ in your body suffers because oxygen is essential for life.
How the Lungs Work
When you breathe in:
Air enters through the nose or mouth
Travels down the windpipe (trachea)
Moves into smaller airways (bronchi)
Reaches tiny air sacs called alveoli
The alveoli transfer oxygen into the blood, and carbon dioxide is removed when you breathe out.