Are You "Just Tired" or Is It Chronic Fatigue Syndrome? Everything You Need to Know
Medically Reviewed by Carolin Schneider, MD
Chronic fatigue syndrome (CFS), which is also called myalgic encephalomyelitis, is a complex disorder of several organ systems. Although the cause is currently unknown, it's clearly a debilitating condition that interferes rather severely with an individual’s ability to function and complete daily activities, namely because individuals with chronic fatigue syndrome may experience long-lasting tiredness.
Individuals living with chronic fatigue syndrome often spend hours a day sleeping because they are too weak and exhausted to complete so-called "simple" tasks. In fact, even after extended periods of rest, the severity of the condition does not necessarily lessen.