Chronic fatigue syndrome (CFS) is a chronic disorder characterized by debilitating fatigue of longer than six (6) months duration.

CFS causes nonspecific flu-like symptoms, including headaches, sore throats, swollen lymph nodes, fever and pain in the muscles and joints. It can cause an inability to think clearly and concentrate, memory loss, confusion, irritability, sleep disturbance and depression.

CFS began receiving widespread attention in the mid-1980s, after reports of about 100 cases in the...