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.
It is usually caused by a flexion-extension motion of the neck that pulls and strains the neck muscles and ligaments. 1  Whiplash happens in motor vehicle accidents, sporting activities, accidental falls, and assault.hiplash is a nonmedical term used to describe neck pain following an injury to the soft tissues of the neck (specifically ligaments, tendons, and muscles).