What to know about chronic fatigue syndrome

Chronic fatigue syndrome (CFS) is a debilitating illness that results in extreme, long-term exhaustion that isn’t fully relieved by sleep or rest. It’s tricky to diagnose because fatigue is a side effect of many other illnesses that need to be ruled out first. CFS still isn’t fully understood and we can only speculate as to the cause. It could be caused by a viral infection or even by psychological factors. This has resulted in many patients suffering stigma and being told it’s all in their heads, although the most recent research leans heavily towards a physiological cause rather than a psychological one. Curious to know more? Click through this gallery to learn the key facts about chronic fatigue syndrome.