Fatigue

Fatigue can be a normal and important response to physical activity, emotional stress, boredom, or lack of sleep. Fatigue is a common symptom, and it is usually not due to a serious disease. But it can be a sign of a more serious mental or physical condition.

Most of the time fatigue can be traced to one or more of your habits or routines, particularly lack of exercise. It's also commonly related to depression. On occasion, fatigue is a symptom of other underlying conditions that require medical treatment.

Lifestyle factors

Taking an honest inventory of things that might be responsible for your fatigue is often the first step toward relief. Fatigue may be related to:

  1. Use of alcohol or drugs

  2. Excess physical activity

  3. Jet lag disorder

  4. Lack of physical activity

  5. Lack of sleep

  6. Medications, such as antihistamines, cough medicines

  7. Unhealthy eating habits