Changing the weight you lift during a workout burns more muscle sugar than lifting the same weight the whole time.

Mixing up heavy and light weights in a workout burns more muscle sugar than sticking to one weight the whole time—likely because you do more total work.

Surprisingly, lifting heavier weights doesn’t burn more muscle sugar—it actually burns less, possibly because you can’t do as many reps.

The more sets you do when lifting weights, the more sugar your muscles burn through.

People who don’t lift weights regularly burn more sugar from their muscles during a workout than people who lift regularly.

The more sets you do in a weightlifting workout, the more your muscle sugar stores get used up—each extra set burns about 11 more units of energy.