“Lift big, get big,” right? The relationship between muscles and reps isn’t that simple. But it’s easy to understand, using an analogy familiar to Asian Boys: Starcraft 2. Before you pick up another weight, take 5 minutes to learn how and why muscle adapts under different rep ranges. After all, you wouldn’t try to rush any unit without understanding its tech tree first, right? Read on to find out how many reps is best and why for your specific goal, whether it’s explosiveness, power, size, or endurance.