I'm 74 years old and recently discovered Wai Lana on my local PBS station. I really like her instruction, she explains everything so clearly so you can follow carefully without getting hurt. I think yoga is such a wonderful form of exercise, I wish I discovered it earlier in my life. I can't do all the exercises but I do what I can. If I can't do them then I just close my eyes and listen to what Wai Lana says.