Pranayama

• Pranayama or breathing exercise means the control of inhalation (breathing air) and exhalation (and its breathing out).
• Breathing carries out the biochemical process of getting energy from digested food.
• As is well known cells and tissues of the body have to depend on their activity on the energy derived from oxidation of the digested food.
• And this process cannot go on without a regular supply of oxygen to cells and tissues.
  Yogakundali upanishad has defined pranayama thus:"the prana is the air that flows in the body.