An impression of having seen or experienced something before: Old-timers watched the stock-market crash with a distinct sense of dÃ©jÃ  vu. b. Dull familiarity; monotony: the dÃ©jÃ  vu of the tabloid headlines.
Lateral Neck Flexion Stretch. Lateral neck flexion stretch targets the upper trapezius muscle. This stretch can be very useful for people who suffer from tight, aching muscles in the upper back and neck, such as those who work at a computer.his stretch can be very useful for people who suffer from tight, aching muscles in the upper back and neck, such as those who work at a computer.
Your splenius capitis muscle is comprised of several muscular fibers that insert themselves into the skull and are responsible for proper neck extension.Strengthening this muscle can help you keep a stable spine while preventing unwanted upper back and neck pain.hin-to-Chest. The chin-to-chest exercise stretches your splenius capitis while using your upper back muscles and posterior deltoids as muscle stabilizers. Sit on a chair and let your head drop forward as far as possible.