How many reps to build muscle?

The optimal rep range for hypertrophy (muscle growth) is 8-12 reps per set ( 9 ). Many experts agree that this range provides a great combination of mechanical tension and metabolic stress, which are key drivers of muscle growth ( 10 ). However, you can build muscle outside this range. Lighter loads for 15-20 reps and heavier loads for 3-5 reps can also stimulate hypertrophy, so incorporating a variety of rep ranges is a smart strategy ( 9 ).

Will I lose gains after 5 days?

No, you will not lose muscle gains if you take 5 days off from the gym. Muscle atrophy (loss) is a much slower process. It typically takes at least 2-3 weeks of complete inactivity for any significant muscle loss to occur ( 11 ). Taking a few rest days, or even a whole week off for a deload, is beneficial for recovery and can help prevent overtraining ( 12 ), ultimately supporting long-term progress.

Should I do cardio every day?

Engaging in cardio every day is not necessary for muscle gain and may even be counterproductive if it’s too intense or interferes with your recovery. Cardiovascular exercise is essential for overall health and can enhance your work capacity, enabling you to handle a greater volume in the weight room ( 13 ). Aim to get a minimum of 150 minutes of moderate activity weekly. Consider dividing these minutes into 5, 30-minute brisk walks. However, you should also incorporate 1-2 higher intensity cardio sessions ( 14 ). On this 5-day plan, Day 5 focuses solely on higher-intensity conditioning, which is sufficient for the week.

Should I do abs every day?

No, you should not train your abs every day. The abdominals are a muscle group just like any other and require time to recover and grow ( 15 ). Training them 2-3 times per week with targeted exercises is sufficient. Additionally, your core is heavily engaged during compound lifts like squats, deadlifts, and overhead presses, so it gets plenty of work throughout the week.