In this method, as a person slips into a seizure state, s/he is trained to reflexively catch and hold their breath as if startled or frightened. This causes changes in metabolism, blood flow, and oxygen levels in the blood. The practice of pranayama, i.e., controlled deep diaphragmatic breathing, helps restore normal respiration; this can reduce the chances of going into a seizure or stop the seizure before it becomes full blown.