Lie face-up on your bed with your neck on the edge of the bed and let your head hang relaxed off of the side. Contracting the muscles at the front of your neck, slowly lift and curl your head toward your chest as far as you can while keeping your shoulders flat on the bed. Hold for 10 seconds, then, being careful not to let your head drop, slowly relax your neck to return your head to the starting position. That’s one rep. Complete three sets of two reps each, sitting up between sets to prevent dizziness. If you experience dizziness, take sitting breaks between each rep or perform the exercise on the floor with your neck in a straight line for the starting position.