Pranayam purifies ida and pingala nadi, and also removes sensory distraction of mind.
It is used to energy the mind for mental work; to sleepiness and to prepare to the mind for meditation.
It makes the mind more alert and perceptive and is an excellent pre-meditation.
Its also useful in the treatment of low blood pressure, high blood pressure, and heart disease.
Pranayam relieves stress and cerebral tension alleviating anger, anxiety, insomnia.
It speeds up the healing of body tissue.
It gives control over hunger and thirst, and generates a feeling of satisfaction.
Pranayam ensures that the whole body is nourished by an extra supply of oxygen carbon dioxide is efficiently expelled and the blood is purified of toxins.
It clears pranic blockages causing sushumna nadi to flow which leads to deep states of meditation and spiritual awakening.
Regular practice of pranayam helps in the elimination of waste materials from the body, which is normally carried out by digestive, respiratory and urinary systems and of course through skin.
The intestines and kidneys benefits in the same way as do the other abdominal viscera, by pressure changes in prananyam and by improvement of circulation.
Pranayam helps in the elimination of carbon dioxide and water vapour properly.
Elimination of excess salts in the form of sweat is promoted by pranayam. This is because pranayam stimulates the sweat glands through its influence on the hypothalamus.
The basic idea of pranayam is that by purifying the whole of the nervous system including the brain, it ultimately leads to the removal of ignorance and to stability and peace of mind. These are the qualities, which every one of us desires to have but very few do actually possess. Coordination among the various functions is brought about by the nervous system. It has two part:-
i) The central nervous system, consisting of the brain, the spinal cord and the spinal nerves and
ii) The autonomic nervous system. The former governs all the voluntary functions The nervous tissue s highly sensitive to lack of oxygen and excess of carbon dio- xide. Moderate practice of pranayam can help to supply enough oxygen and re- move carbon dioxide quickly. Kapalbhati is the best exercise for this purpose.