This book says that constricting your anus and denting your navel 100 times in succession everyday is effective. Doing this will enable you to say good-bye to depression and take back your youth. Here are the top five reasons why you should take this advice: It can be done anywhere. Get rid of stress and say good bye to depression. It can give a good gun or good pliers to man or woman. It reverses the aging process. A healthy buttocks is a happy buttocks. Someone please try this and post your results in the comment section.