Yoga comprises several body postures, which are called yogasanas in Sanskrit. Many people practice pranayama as part of their yogic exercise. In pranayama, people sit cross-legged on the ground and concentrate on their breathing. This form of yoga imparts people with day-long energy and calmness. Several yogasanas like halasana and shirshasana help people battle minor ailments like indigestion, mental stress, backache etc. While yoga cannot replace traditional treatment techniques, I find it can be an excellent complement to existing medications and treatments.