Epidemiology
Approximately 35% of Americans have some element of chronic pain,and approximately 50 million Americans are disabled partially or totally due to chronic pain. Major effects on the patient's life are depressed mood, fatigue, reduced activity, excessive use of drugs, dependent behavior, and disability. Parental chronic pain increases the risk of internalizing symptoms, including anxiety and depression in adolescents.
Read more about this topic: Chronic Pain Syndrome