I am 50 and this was my first Yoga. AM and PM yoga are so short (10min and 20min respectively) that it is hard to have an excuse not to do it! I saw immediate effect of PM yoga on my body. I slept better and the body was not stiff the next morning. Now I do PM yoga before going to bed. Both teachers talk in very soothing and claming voice that automatically calms your mind. I have many Yoga books on my shelf for some years, but this video is the first time I really did any Yoga! I highly recommend this tape to anyone interested in relaxation of body and mind. Namaste!