How many reps and sets should I do to achieve optimal results in my workout regimen? Is there a magical formula that applies universally, or does it vary based on individual goals, fitness levels, and the specific exercises being performed? With so much conflicting advice available, it can be bewildering to determine the most effective approach. Should I focus on higher repetitions with lighter weights for endurance, or is it more beneficial to perform fewer reps with heavier weights for strength and hypertrophy? Moreover, what role does rest time play between sets? Are there particular set configurations—like pyramid or drop sets—that might expedite progress? Or could it be that listening to my body and adjusting based on fatigue and recovery is the key? With all these variables at play, what factors should I prioritize to craft not just an effective, but a sustainable workout plan that aligns with my aspirations and lifestyle?