Muscle growth, also known as hypertrophy, occurs when muscle fibers increase in size. This process is primarily stimulated by resistance training, where muscles are subjected to stress, leading to small tears. The body repairs these tears, making the muscles stronger and larger over time. Nutrition plays a crucial role in muscle growth. Consuming adequate protein provides the building blocks, known as amino acids, necessary for repairing and building muscle tissue. Additionally, proper hydration and a balanced diet support overall health and enhance recovery, further promoting muscle development.