Painful sensation in the neck area.

Neck pain, also known as cervicalgia, is a common problem, with two-thirds of the population having neck pain at some point in their lives. Since there is not a universally accepted classification for neck pain, it is difficult to study the different neck pain types. While neck pain is the second most common cause of disability and cost $100 billion, the NIH budgets only $10 million to the study of neck pain. One of the most common neck pains is between the neck and the shoulder...