Internal and External Respiration Hypocapnia, also called over-breathing and hyperventilation, is a common, chronic condition that causes a wide variety of illnesses by decreasing the oxygen delivered to tissues. It is a symptom of long-term stress and anxiety and is so common that it is seldom diagnosed. Rapid, shallow breathing becomes habitual and can even

The Problem of Heart Rhythm Below are two graphs of the heart rate of a person who is not meditating. (Ignore the very beginning and end of the graph when the software is adjusting.) In the following graph the heart rate is shown versus time. Notice four peaks where the heart rate shoots up to