This "stop and go" build-up, known as " edging ", can achieve even stronger orgasms. The most common masturbation technique among males is to hold the penis with a loose fist and then to move the hand up and down the shaft. Archived from the original on 10 October By Jean Esquirol had declared in his Des Maladies Mentales that masturbation was "recognized in all countries as a cause of insanity. As such, the promotion and de-stigmatization of the practice continue to be important strategies within sexology for the achievement of healthy sexual development and well-being. Ovum Oviposition Oviparity Ovoviviparity Vivipary.