Fatigability

Fatigability is a medical term that refers to the state of being easily fatigued. It is a common symptom in many medical conditions, including chronic fatigue syndrome, fibromyalgia, and multiple sclerosis. Fatigability can also be a side effect of certain medications.

Definition

Fatigability is defined as the susceptibility to becoming fatigued. This can be physical, such as muscle weakness after exertion, or mental, such as difficulty concentrating after a period of mental activity. It is often used as a measure of functional capacity in individuals with chronic illnesses.

Causes

There are many potential causes of fatigability, including:

• Chronic illnesses such as fibromyalgia, chronic fatigue syndrome, and multiple sclerosis
• Medications that have fatigue as a side effect
• Sleep disorders such as insomnia or sleep apnea
• Mental health conditions such as depression or anxiety
• Nutritional deficiencies

Diagnosis

The diagnosis of fatigability is often made based on a patient's symptoms and medical history. A physical examination and laboratory tests may also be used to rule out other potential causes of fatigue.

Treatment

Treatment for fatigability often involves addressing the underlying cause. This may involve changes to medication, treatment for sleep disorders, or therapy for mental health conditions. Physical therapy and exercise may also be beneficial.

See also

• Chronic fatigue syndrome
• Fibromyalgia
• Multiple sclerosis
• Insomnia
• Sleep apnea
• Depression
• Anxiety

Fatigability Resources
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