"Use variety of rep ranges for strength and muscle After explaining that muscle growth is roughly equal across rep ranges when sets are taken close to failure, the speaker clarifies that strength — the absolute ability to generate force — does respond better to heavier loads. His practical solution for most people is to "use a variety of rep ranges" because it keeps training engaging and ensures you capture whatever subtle benefits exist at each end of the spectrum. This is especially relevant as people age, when strength for quality of life matters as much as muscle mass. Source: Lane Norton, Forever Strong Experience, Nutrition and Body Composition Episode"