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.
Strain to neck muscles, called cervical strain, can be due to muscle spasm following an injury. Whiplash, poor posture, psychological stress that causes you to tense your muscles, poor sleeping habits, and/or sports injuries are common causes of cervical muscle spasm. Symptoms associated with this type of neck disorder can include pain, stiffness, and/or tightness in muscles that lasts up to six weeks.