The majority of people will suffer from neck pain at some point during their adult life. For most people, this will be acute neck pain lasting for a few hours/days. Neck pain the last for longer than a couple of weeks is considered chronic. A significant percentage of neck pain cases are not serious and are caused by poor posture, but in some cases, it can be a sign of a more serious problem. If you suspect from severe neck pain for a prolonged period of time it is wise to seek medical attention.