CausesBy Mayo Clinic staff
Taking a quick inventory of the things that might be responsible for your fatigue is the first step toward relief. In general, most cases of fatigue may be attributed to three areas: lifestyle factors, medical conditions or psychological problems.
Feelings of fatigue often have an obvious cause, such as:
- Alcohol use or abuse
- Caffeine use
- Excessive physical activity
- Lack of sleep
- Medications, such as antihistamines, cough medicines and cold remedies
- Unhealthy eating habits
Unrelenting exhaustion may be a sign of a medical condition or underlying illness, such as:
- Acute liver failure
- Chronic fatigue syndrome
- Chronic kidney failure
- Heart disease
- Hyperthyroidism (overactive thyroid)
- Hypothyroidism (underactive thyroid)
- Medications, such as prescription pain medications, heart medications, blood pressure medications and some antidepressants
- Restless legs syndrome
- Sleep apnea
- Type 1 diabetes
- Type 2 diabetes
Fatigue is a common symptom of mental health problems, such as:
- Depression (major depression)
Causes shown here are commonly associated with this symptom. Work with your doctor or other health care professional for an accurate diagnosis.
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