Instructions:

1. Lie flat on a bench with your feet flat on the ground and your head at the end of the bench.
2. Hold the barbell with an overhand grip, hands shoulder-width apart, and extend your arms straight up over your chest.
3. Keeping your upper arms stationary, slowly lower the barbell towards your forehead by bending your elbows.
4. Pause for a moment at the bottom, then extend your arms back up to the starting position.
5. Repeat for the desired number of repetitions.