A shift worker confuses their circadian clock by working when their body is programmed to be asleep. These may include long work hours, hard physical labour, irregular working hours such as rotating shifts , a stressful work environment such as excessive noise or temperature extremes , boredom, working alone with little or no interaction with others, or fixed concentration on a repetitive task.
Workplace stress — can be caused by a wide range of factors including job dissatisfaction, heavy workload, conflicts with bosses or colleagues, bullying, constant change, or threats to job security. Burnout — can be described as striving too hard in one area of life while neglecting everything else. Unemployment — financial pressures, feelings of failure or guilt, and the emotional exhaustion of prolonged job hunting can lead to stress, anxiety, depression and fatigue.
Psychological causes of fatigue Studies suggest that psychological factors are present in at least 50 per cent of fatigue cases. These may include: Depression — this illness is characterised by severe and prolonged feelings of sadness, dejection and hopelessness. People who are depressed commonly experience chronic fatigue. Anxiety and stress — a person who is chronically anxious or stressed keeps their body in overdrive.
The constant flooding of adrenaline exhausts the body, and fatigue sets in. Grief — losing a loved one causes a wide range of emotions including shock, guilt, depression, despair and loneliness. Diagnosing fatigue As fatigue can present a vast range of symptoms and be caused by many different factors working in combination, diagnosis can be difficult.
Your doctor may diagnose fatigue using a number of tests including: Medical history — recent events such as childbirth, medication, surgery or bereavement may contribute to fatigue. Physical examination — to check for signs of illness or disease. Your doctor may also ask detailed questions about diet, lifestyle and life events.
Tests — such as blood tests, urine tests, x-rays and other investigations. The idea is to rule out any physical causes, for example anaemia, infection or hormonal problems.
Treating fatigue Fatigue is a symptom —something you can feel and describe — not a condition or disease. Where to get help Your doctor.
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Luo, M. Causes When to see a doctor Treatment Lifestyle changes Overview Fatigue is a term used to describe an overall feeling of tiredness or lack of energy. What causes fatigue? When is it time to see your doctor? Approach to the adult patient with fatigue. Kryger MH, et al. Fibromyalgia and chronic fatigue syndromes. In: Principles and Practice of Sleep Medicine. Elsevier Saunders; Simon NM.
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