Watch Baba Ramdev - Ardha Matsyendrasana (Half Spinal Twist) - Energizes The Spine - Yoga Posture. Persons suffering from slipped disc, duodenal ulcer, hernia and cardiac problem should avoid this asana. All the of Shalabha, Bhujanga and Ddhanurasanas are obtained from this asana. Charakasana strengthens the vertebral column and increases the oxygen in-take capacity. It prevents respiratory disorders and relieves stiffness of joints, back, shoulder and the thoracic cage. It is very useful in treating diabetes, asthma, constipation and obesity.  Show less