Thank you very much for your reply. For the last one and half months I have been doing these exercises 21 times each early in the morning. I do feel the enhanced energy even at the end of the day. I have been doing the fifth rite opposite to what you have suggested (I have been doing the push - ups that way for the last 40 years). I will start the way you directed from tomorrow. I will also visit your web site. Thanks a lot for the clarification.