Yoga, a class practices Salamba Sirsasana, the supported headstand posture. The supported headstand is an advanced inverted pose that calms the brain and strengthens the body. It may help to relieve stress, stimulates the pituitary and prostate glands, strengthens the arms, legs, spine and lungs. Developed in India, yoga involves postures, breathing exercises, and meditation that act to improve muscle tone, flexibility, strength and stamina. The practice of yoga may also reduce stress and tension, creating a sense of well being and calm.