I have used Bryan's Power Yoga Series for 10 years of so. It's an excellent workout, great for toning, balance, weight loss, relaxation. I often tire of other routines and always come back to Bryan. If you think Yoga is for light weights think again. Power Yoga is designed to give a good work out - you WILL break into a sweat. Whether your are young or older, physically fit or a couch potato you will gain tremendously from Power Yoga. I highly recommend this Series.