Chronic Fatigue Causes
Although the exact causes of chronic fatigue are unknown, infection, hormone levels, and stress are believed to play a role in its development. Having chronic fatigue, regardless of the cause, has a major impact on quality of life and can affect your day-to-day functioning.
Fatigue refers to a sensation of exhaustion during or after usual daily activities, or a lack of energy to begin these activities. Chronic fatigue occurs when symptoms of exhaustion or lack of energy last more than six months. Although the exact chronic fatigue causes are unknown, infection, hormone levels, and stress are believed to play a role in this symptom.
Medical ConditionsCertain medical conditions can contribute to chronic fatigue. Some of these conditions include:
- Chronic fatigue syndrome (CFS)
- Myalgic encephalomyelitis
- Multiple sclerosis
- Systemic lupus erythematosus (lupus or SLE)
- Multiple chemical sensitivities
- Sleep apnea
- Major depressive disorders
- Chronic mononucleosis (mono)
- Bipolar affective disorders
- Eating disorders (anorexia or bulimia)
- Autoimmune disease
- Hormonal disorders
- Subacute infections
- Alcohol or substance abuse
- Reactions to prescribed medications.
Regardless of the cause of chronic fatigue, this exhaustion has a major impact on a person's day-to-day functioning and quality of life.