How to Breathe Correctly for Optimal Health, Mood, Learning & Performance | Huberman Lab Podcast

Mechanics

Understanding the mechanics of breathing involves recognizing the roles of the diaphragm and intercostal muscles. Andrew Huberman explains that the intercostal muscles, located between the ribs, contract during inhalation, allowing the rib cage to expand and the lungs to fill with air 1. The diaphragm, a thin muscle beneath the lungs, contracts and moves downward during diaphragmatic breathing, creating space for lung expansion 2. This mechanical process is crucial for effective respiration, as it facilitates the movement of air through the nose or mouth, down the larynx, and into the lungs, which are equipped with millions of alveoli to maximize oxygen exchange 3.

The lungs are not just two big bags of air. Your lungs are actually two big bags of air that inside of them have hundreds of millions of little sacs that are called the Avioli of the lungs.

--- Andrew Huberman

These alveoli increase the surface area for oxygen to enter the bloodstream and for carbon dioxide to be expelled, highlighting the intricate design of our respiratory system.

   

Chemistry

The chemical aspects of breathing are equally vital, focusing on the exchange of oxygen and carbon dioxide. Andrew Huberman clarifies that carbon dioxide is essential for liberating oxygen from hemoglobin, allowing it to reach tissues like the brain and muscles 4. This process is critical because without carbon dioxide, oxygen cannot be efficiently delivered to the body's cells 5. Additionally, carbon dioxide levels influence the body's pH balance, with low levels leading to increased alkalinity, which temporarily enhances oxygen availability 4.

Carbon dioxide has this incredible property of actually being able to change the shape of hemoglobin.

--- Andrew Huberman

This intricate balance of gases underscores the importance of maintaining proper carbon dioxide levels for optimal physiological function.