People who experience body pain that does not go away may be suffering from Chronic Pain Syndrome, or CPS. This condition shares much in common with other health problems, but can be diagnosed effectively by following a series of steps. The first is to measure the frequency and duration of the pain. If the pain is frequent and severe, the doctor will examine the affected area for swelling, discoloration, and movement difficulties. After this, the patient will be observed for signs of depression and assessed for sleeping problems. Only once these symptoms are identified, can a definitive diagnosis of CPS be made.

Q: What can be inferred from the passage?