The dumbbell bench press is a strength training exercise that targets the chest, shoulders, and triceps. It is performed by lying on a flat bench while holding a dumbbell in each hand. The weights are pressed upward until the arms are fully extended, then lowered back to chest level. This exercise can help improve upper body strength and muscle definition. It allows for a greater range of motion compared to a barbell bench press, which can lead to better muscle activation. Proper form is essential to prevent injury and maximize effectiveness.