Asana generates sustained muscle contraction. Due to which, condition of hypoxia generates in the muscles. Hypoxia refers to lack of oxygen. This condition stimulates the secretion of erythropoietin from juxtamedullary cells of kidney. This whole process is known as erythropoiesis. Finally myoglobin rises in muscles and muscular efficiency improved.
Flexibility of the body produces flexibility of the mind, so we are able to assess our negative attitudes etc. and change them. Relaxation produced by a yoga session lasts way beyond the session and becomes an ongoing state as we continue overtime with our practices. It breaks the vicious circles such as Anxiety to Tension to Fear to Anxiety.
The gastrointestinal tract requires to be rotated in order to be washed thoroughly just as conch shell. In Laghu Shankha Prakshalana this is achieved by performing particular exercises which increase intestinal motility temporarily, thus causing the large volume of water gulped to move down the intestines and resulting into watery loose motions. Laghu Shankha Prakshalana reduces the bile acid pool. Bile is a complex fluid containing various substances, some of which are merely waste products undergoing excretion Cholesterol, one of the chief constituents of bile, is also reduced, resulting in reduced fat (both triglyceride and cholesterol) absorption for the next several days and thus it can help to reduce weight.
The involuntary control of breathing originates in the medulla oblongata of the brain stem, a region known as primitive brain, while voluntary control of breath comes from the more evolved areas of the brain in the cerebral cortex. During conscious control of the breath, the cerebral cortex by-passes the respiratory center in the brain stem. It is thought that impulses from the cortex affect adjoining areas of the brain concerned with emotions. Whatever the mechanism, conscious breathing has an emotionally calming effect