Practice a gentle variation of Surya Namaskar (sun salutation). Suitable for beginners, for anybody with back problems, even with slipped disk. Suitable also for anybody who is not supposed to do inverted postures. Of course, you should consult a doctor, health practicioner or a qualified Yoga teacher if you have any health problems. Surya Namaskar gives you new energy and strength. Demonstrated by David, Yoga teacher at Yoga Vidya http://www.yoga-vidya.de/english . Text, camera, explanations by Sukadev Bretz, founder of Yoga Vidya Germany. http://my.yoga-vidya.org