Anuloma pranayama
Similar to the practice of Nadi Shodhana (commonly called alternate nostril breathing and known in some circles as Anuloma Viloma) is the practice of inhaling through both nostrils together and exhaling each breath alternately between the left and right nostrils.Inverted Anuloma breath is called Pratiloma and involves inhaling through alternating nostrils and exhaling through both together.The practice of a kumbhaka or retention is encouraged as students advance at the practice; first at the end of the inhale and eventually the end of the exhale.When practiced as Saṃa Vṛtti the inhalation, retention and exhalation are all of equal duration.According to many traditions this is not recommended for beginners or anyone practicing without the guidance of an experienced teacher.