In a seated or standing position, elongate your spine for a tall, straight back. Then, leading with your chin, slowly and gently rotate your head so it moves in a full circle from your shoulder to chest to shoulder to back. (If full circular rotations bother your neck, stick with semicircles moving from shoulder to shoulder.) Make sure to keep your shoulders down and back throughout the movement. That’s one rep. Complete 10. Repeat in the opposite direction.