I would also like to say that I have dong GiGong for several years off and on. I do Spring Forest on some days and on the other days I use Lee Holden's CD. When I do Spring Forest, I do each exercise for five minutes which is not the recommendation. I still reap many benefits. It has helped me to find balance and peace in my life. It is a form of meditation for me and I think of it often as a way to unconditionally love oneself. It is very centering and I see no way that it could be harmful -- Just take it easy and follow your own inner guide.