This is ideal for deadlifts, squats, bench presses and Olympic lifting.” On the other hand, Sheridan says that beginners just looking to tone up might aim for a maximum of 20 reps per set.

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I don't lift weights heavier than 7 pounds because when I do, my shoulders, back and chest bulk up in a way that I don’t like. So, I prefer to stick to my 3- or 5-pound dumbbells.