If you're aiming to increase muscle size in 2025, a recommended approach is to perform 14 working sets per muscle group each week. This method not only promotes muscle hypertrophy but also ensures that you're targeting all major muscle groups effectively. To implement this, begin by breaking down your workouts into a structured plan that includes a variety of exercises targeting different muscles. Consider splitting your routine into upper and lower body days or push and pull workouts. Moreover, integrate progressive overload by gradually increasing the weights or resistance to continuously challenge your muscles. Remember, focusing on proper form is crucial to prevent injuries. Incorporate rest periods and ensure you're allowing adequate recovery between workouts to maximize results. Additionally, maintaining a balanced diet rich in protein will complement your training regimen, aiding muscle recovery and growth. Stay consistent, track your progress, and adjust your routine as necessary to keep up with your fitness journey.