“So for instance, if you’re doing bicep curls, your body and arms shouldn’t be flailing or jerking around in order to move the weight and perform the exercise. Everything should be done in slow, controlled reps, and if you find that the weights are causing your body to change motion or get out of form, you need to be using a smaller weight.”

—Spencer Althouse, BuzzFeed

“If you sacrifice your form to lift a higher weight, you’re just going to end up with muscle imbalances or worse, hurt. It’s more important to lift with correct form at a lighter weight.”

—sarahd188