Pranayama is control of Breath".
'Prana' is breath or vital energy in the body. On subtle levels prana represents the pranic energy responsible for life or life force, and 'ayama' means control.
Pranayama is a scientific tool to assist the practitioner in the control of the vital life force. This is beneficial in two ways, firstly the development of balance and calmness in the mind.
Secondly, assisting the removal of many of the body’s diseases eg irregular blood pressure, asthma, diabetes, anxiety and depression to name just a few.