The Dumbbell Curl is a popular strength training exercise primarily targeting the biceps. To perform this exercise, stand upright with a dumbbell in each hand, arms fully extended at your sides. Keep your elbows close to your torso and curl the weights upward by bending your elbows, then lower them back to the starting position. This exercise can be done with various weights to suit different fitness levels. It helps improve arm strength and muscle definition. Proper form is essential to avoid injury, so it's important to control the movement and avoid swinging the weights.