![]() feeling unrefreshed after a night’s sleep.This can last for more than 24 hours after the activity.ĬFS can also introduce sleep problems, such as: You will also experience extreme fatigue after physical or mental activities, which is referred to as post-exertional malaise (PEM). The most common symptom is fatigue that’s severe enough to interfere with your daily activities.įor CFS to be diagnosed, a significantly reduced ability to perform your usual daily activities with fatigue must last for at least 6 months. Symptoms of CFS vary based on the individual and the severity of the condition. Doctors haven’t yet concluded whether this is significant, either. People with CFS can also sometimes have abnormal hormone levels. People with CFS sometimes have weakened immune systems, but doctors don’t know whether this is enough to cause the disorder. In fact, about 1 in 10 people with EBV, Ross River virus, or Coxiella burnetii infection will develop a condition that meets the criteria for a CFS diagnosis.Īdditionally, researchers say that those who’ve had severe symptoms with any of these three infections are at a higher risk for later developing CFS. The Centers for Disease Control and Prevention (CDC) has suggested that CFS may be the end stage of multiple different conditions, rather than one specific condition. Infections caused by bacteria, including Coxiella burnetii and Mycoplasma pneumoniae, have also been studied in relation to CFS. Some viral infections that have been studied in relation to CFS include those caused by: Though CFS can sometimes develop after a viral infection, no single type of infection has been found to cause CFS. It’s also possible that some people are genetically predisposed to develop CFS. Researchers speculate that contributing factors may include: Here’s what you need to know about CFS, including symptoms, treatment options, and outlook. ![]() There’s currently no cure, but treatment can relieve symptoms. While CFS was previously a controversial diagnosis, it’s now widely accepted as a medical condition.ĬFS can affect anyone, though it’s most common among women in their 40s and 50s. Your doctor will have to rule out other causes for your fatigue when determining a diagnosis. Some theories include viral infection, psychological stress, or a combination of factors.īecause no single cause has been identified, and because many other conditions produce similar symptoms, CFS can be difficult to diagnose. The causes of CFS aren’t fully understood yet. Chronic fatigue syndrome (CFS) is a disorder characterized by extreme fatigue or tiredness that doesn’t go away with rest and can’t be explained by an underlying medical condition.ĬFS can also be referred to as myalgic encephalomyelitis (ME) or systemic exertion intolerance disease (SEID). ![]()
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