When we breathe in excess of what we require, too much carbon dioxide is exhaled from the lungs and, hence, is removed from the blood. It forces that door to a more closed position, making it harder for oxygen to pass through. Breathing too much for short periods of time is not a significant problem, as no permanent change in the body occurs. However, when we breathe too much over an extended period of days to weeks, a biochemical change takes place inside us that results in an increased sensitivity or lower tolerance to carbon dioxide. With this lower set point, breathing volume remains above
...more
