Chakrasana stretches and strengthens the stomach, improves the concentration by bringing blood to the head, and gives greater control over the body. It also prevents bad posture, tones the extremities, improves the memory, heightens energy and vitality, brings a feeling of lightness to the body, and improves circulation to the trachea and larynx. (The trachea—also known as the windpipe—is the passageway between the larynx and the lungs, and the larynx is the area of the throat that contains the vocal cords.