Another distinctive feature of the Unani system of medicine is its emphasis on diagnosing a disease through Nabz (Pulse), arrhythmic expansion of arteries which is felt by fingers. Other methods of diagnosis include examination of Baul (Urine), Baraz (Stool) etc. The Unani physician also takes into consideration the influence of surroundings and ecological conditions such as air, food, drinks, body movement and repose, psychic movement and repose, sleep and wakefulness, and excretion and retention on the state of health.