Muscle hypertrophy is a scientific term that is used to refer to the growth and increase in size of existing muscle cells, as opposed to the formation of new muscle cells.In short, bodybuilding is the process of adding extra muscle mass to the body by extensive working out and control of diet. It is something that is done either for personal achievement, recreation or as a competitive ‘sport’.However, one of the first areas of dispute between those who practice bodybuilding and those who are less enamored of it concerns whether bodybuilding is a genuine sport or not. The contention that it is not a sport is based on the fact that there is no athletic activity involved, as the whole basis of judging bodybuilding competitions is the appearance and aesthetics of the contestants.