Instructions:

1. Stand with your feet shoulder-width apart, holding a dumbbell in one hand with an overhand grip.
2. Let the dumbbell hang at arm's length in front of your thighs, with your palm facing your body.
3. Keeping your back straight and your core engaged, exhale and lift the dumbbell straight up towards your chin, leading with your elbow.
4. Pause for a moment at the top, then inhale and slowly lower the dumbbell back down to the starting position.
5. Repeat for the desired number of repetitions, then switch to the other arm.