Also known as the loud breathing technique, the Ujjayi is performed by breathing through both nostrils while keeping the glottis closed to a degree. This technique is used in order to increase your control over the activity of your lungs. It also functions as a method of clearing the throat. The name comes from the fact that the air passing through the partially closed glottis makes a constant and fluent sound. Yogis try to eliminate nasal sounds and to keep the constant flow of air and sound on a harmonious tone.
In order to correctly practice this breathing method you have to use chin lock and also employ the closure of both nostrils. Keep the pause for as long as you can and gently exhale at the end. The left nostril is usually used to let out the air. In case you kept your nostrils closed with your fingers you can simply release pressure of the left nostril and the air will flow out naturally. Simultaneously with releasing the nostril try to unlock the chin and open the glottis to a higher extent.
Inhaling air should be given half the time you reserve for exhaling. Determining the precise inhalation and exhalation times is different for each person but you will probably find this out yourself while practicing Ujjayi. Holding the pause for a long time between breathing in and out might be difficult to do. In time, however, you will be able to hold the pause as long as the exhalation time.
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