As you’ll see, the workouts in the 5- and 4-day plans will always contain 9 working sets for the major muscle group being trained, but will also provide 3 additional optional sets that you can do if you’re feeling up to it. If you’re brand new to weightlifting and are pretty spent after 9 sets, don’t feel like you have to do the final 3. If you’re more experienced or just have plenty of energy at the end of 9 sets, feel free to do the 3 extras. Don’t get overzealous and do more than this in each workout, though, even if you feel like you can keep going after 12 working sets. Doing more isn’t
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