
If you’re tight on time but still want to build stronger muscles, fortunately, you don’t need to find time for an extended gym session, as you can work your whole body, boost your metabolism, and strengthen your core in just 40 minutes with this high-intensity dumbbell workout.
But that doesn’t mean you can’t do this at the gym. All you need to do is pick up a pair of dumbbells that are heavy enough to challenge your muscles but won’t affect your form, so you can do each exercise with the proper technique.