Jivha Mula Shodhana is cleaning the root of the tongue. This cleansing affects the entire digestive and eliminative processes. This technique is best done in the morning, as it helps a good bowel movement.
Open your mouth wide and insert your index and middle fingers into the mouth and rub the tips of your fingers as far back till the root of the tongue. Continue this rubbing for two to three times till you feel the sensation of throwing up. Gargle with water.
People with hypertension, cardiac ailments, stomach surgeries, pregnancy must use extra caution or may perform this gently using only one finger without any strain on the heart and stomach.
The benefits of this asana include an activation of the taste buds, removal of toxins and a reduction in bad breath. The sensation of throwing up results in stomach contraction, which in turn helps in good elimination and reduces constipation (provided you are including a good amount of dietary fibre in your meals and water).