Several studies have shown that heart disease, depression, anxiety, and chronic pain patients have an intimate relationship with persistent shallow, chest breathing behaviors. Several researchers have suggested maintenance of posture and breathing habits to be the most important factor in health and energy promotion. http://nirvana.fitness/class-specifics.html
Effective and efficient oxygenation of the cells, tissues, and organs of our body is an absolute energy necessity. Our respiration cycles are governed by the autonomic nervous system. When your body is under stress you tend to take short, shallow breaths.
Because these breaths only penetrate into the upper portion of the chest and lungs they are called "chest breaths.” This reduces your bodies’ ability to effectively oxygenate. This is appropriate in order to increase respiratory rate when you are under truly stressful situations, like being chased by a lion or sprinting on a track. However, when it continues for an extended period of time it sets up the pathological processes. Learn more