Hypertrophy is the increase in  muscle mass and strength training increases the strength of muscles. The effort performed  during the practice of some  exercise, causes muscle stress and  this practice, when well oriented,  leads to the gain of lean mass and strength. The  practice of bodybuilding, combined  with the functioning of the body's  metabolism and proper training, is the most effective method for gaining muscle mass and strength. Some people find it difficult to gain  mass or gain strength because they train wrong. Therefore,  well-oriented exercises and an adequate caloric intake are fundamental to obtain the best results and understanding what your needs are and directing your training to optimize your mass gain and strength is essential for us to achieve your goals.