More lifting helps, but only up to a point—after that, each extra set gives you less and less benefit, no matter if you’re trying to grow muscle or get stronger.

Muscle size and strength don’t grow the same way when you lift more — strength hits a ceiling faster than muscle size, meaning they’re probably controlled by different biological processes.

The relationship between weekly resistance training volume and strength gains exhibits stronger diminishing returns than the relationship between volume and muscle hypertrophy.

In trained individuals, higher resistance training volumes lead to concomitant increases in both muscle hypertrophy and maximal strength.

Lifting more weights each week makes you stronger, but the gains slow down faster than muscle growth — after a certain point, adding more sets gives you very little extra strength.

Muscle size and strength don’t respond the same way to more training—strength peaks faster, so adding more sets helps muscle growth longer than it helps strength.