Muscle hypertrophy occurs when muscle fibers increase in size due to resistance training and adequate nutrition. This process is stimulated by mechanical tension, metabolic stress, and muscle damage during workouts. Proper recovery, including progressive overload and sufficient protein intake, is crucial for hypertrophy. As muscles repair, they adapt by becoming larger and stronger, improving overall strength and physical performance. This adaptation is vital for athletes and fitness enthusiasts aiming to enhance their muscle mass and achieve strength goals.