Stand up holding a pair of dumbbells with your hands down at the side and your palms facing your body (a neutral grip). It is the starting position.
Slowly curl the dumbbell of your left arm across the body towards your right shoulder. Touch the upper part of the dumbbell to the shoulder and maintain the contracted position for a second.
Gradually bring the dumbbell down to the initial position and then perform the same movement with the other arm
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