Causes and Risk Factors of Fatigue

It is considered normal for individuals to feel fatigued after they have not slept very well, have had a long day or have physically exerted themselves. Feeling excessively fatigued for at least six months may indicate that an individual is suffering from a condition called chronic fatigue syndrome. There are a number of possible risk factors and causes of excessive fatigue.

Medical Conditions

• Addison's disease, AIDS, arthritis, cancer, congestive heart failure, diabetes, eating disorders, kidney disease, liver disease, lupus, mononucleosis and tuberculosis are all medical conditions which are thought to cause fatigue, according to the University of Maryland Medical Center. The human herpesvirus 6 and Epstein-Barr virus are two viral infections which are possible causes of fatigue, according to the Mayo Clinic. Treating underlying medical conditions can reduce the problem.

Medications

• Taking certain medications puts an individual at risk of experiencing fatigue. Allergy medications, blood pressure medications, diuretics, sleeping pills and steroids are all medications which can cause this problem, according to the University of Maryland Medical Center. Anyone who suspects that their medication may be the cause of their fatigue should let their doctor know. The doctor may switch the patient's medication or dosage if necessary.

Nutrient Deficiency

• Anemia, which is caused by an iron deficiency, is thought to be one of the possible causes of chronic fatigue syndrome. While there is no scientific evidence which proves that there is a link between nutrient deficiencies and fatigue, it is ideal to ensure that nutritional requirements are being met, according to the Centers for Disease Control and Prevention. Following a well-balanced diet and taking a daily multivitamin may help provide relief for individuals suffering from fatigue.

Depression and Emotional Stress

• Depression is one of the possible causes of fatigue. Individuals who are suffering from depression may experience fatigue that persists throughout the day, as well as feelings of sadness, mood swings, changes in appetite and a reduction in libido. To treat this form of fatigue, individuals may need to receive therapy or antidepressants in order to cope with the mental condition. Similarly, emotional stress can also cause fatigue. This may occur following a divorce, death or job loss.

Age and Gender

• Fatigue can affect individuals of any age or gender. Excessive stress tends to be more common among individuals who are in their 40s or 50s, according to the Mayo Clinic. Although women are four times more likely to become diagnosed with chronic fatigue syndrome, it is not known whether or not there is a link between gender and fatigue, according to the Mayo Clinic. There is a chance, however, that women are more likely to seek attention for their fatigue than men.