If you respond really well (or not so well) to a weight training program, you’ll probably have a similar result if you do the exact same program again after taking a break.

If you gain more muscle and strength when working out, you might also lose more when you stop — your gains and losses seem to go hand in hand.

Doing more sets, reps, and lifting heavier weights doesn’t always mean you’ll grow bigger muscles—some people see big gains with less volume, while others don’t grow much even with more work.

Just because your muscles get bigger from lifting weights doesn't mean you'll get much stronger — the two don't really go hand in hand.

When scientists look at how one person changes over time—like how their muscles grow and get stronger together—they find a super strong link. But when they compare different people to each other, that link looks much weaker.

When people lift weights, how much their muscles grow depends way more on their own body than on the type of workout they do—because even when people switch up their routines, their muscle growth stays pretty much the same.