Fatigue can be caused by lifestyle habits, work pressures, mental health challenges, or underlying medical conditions. Feeling persistently tired is not just a minor inconvenience — it can significantly impact your daily life. Fatigue is a common concern among Australians, and understanding its causes is the first step toward effective management.
Common Causes of Fatigue
1. Lifestyle Factors
Everyday habits can contribute to feelings of fatigue:
- Poor Sleep: Inadequate or disrupted sleep impairs your body's ability to recharge.
- Lack of Exercise: Sedentary lifestyles can lead to decreased energy levels.
- Unbalanced Diet: Insufficient nutrients, especially iron and B vitamins, can cause tiredness.
- Excessive Caffeine or Alcohol: These can interfere with sleep quality and energy levels
- Stress and Over commitment: Chronic stress drains mental and physical energy
- Excessive Screen Time: Too much exposure to screens — especially before bed — can interfere with melatonin production and disrupt sleep cycles.
2. Medical Conditions
Fatigue can be a symptom of various issues:
- Anemia: Low iron levels reduce oxygen delivery to tissues
- Thyroid Disorders: Both hypothyroidism and hyperthyroidism can cause fatigue.
- Diabetes: Fluctuating blood sugar levels affect energy.
- Sleep Apnea: Interrupted sleep leads to daytime drowsiness.
- Chronic Fatigue Syndrome (ME/CFS): Characterised by extreme fatigue not improved by rest.
- Hormonal Changes: Fatigue can occur during peri-menopause, menopause, pregnancy, or other hormonal shifts.
3. Mental Health Issues
Psychological factors play a significant role
- Depression: Often presents with persistent tiredness.
- Anxiety: Can lead to sleep disturbances and exhaustion
- Grief or Trauma: Emotional stress can interfere with sleep patterns.
4. Work-Related Factors
Occupational elements can contribute:
- Long Hours: Extended work periods without adequate rest.
- Shift Work: Disrupts natural sleep-wake cycles.
- High-Stress Environments: Constant pressure can be draining.
Australian Statistics on Fatigue
Fatigue is a significant concern in Australia:
- 20–30% of fatal road crashes are attributed to driver fatigue. (Budget Direct)
- The Australian Burden of Disease Study 2023 highlights fatigue as a common symptom affecting quality of life. (AIHW)
When to Seek Medical Advice
If fatigue persists despite lifestyle adjustments, it's important to consider seeking professional help. Persistent tiredness can indicate underlying health issues that require medical attention.
FAQs About Fatigue
Q: How much sleep do I need to avoid fatigue?
A: Adults typically require 7–9 hours of quality sleep per night.
Q: Can diet affect my energy levels?
A: Yes, a balanced diet rich in nutrients supports sustained energy.
Q: Is it normal to feel tired during the day?
A: Occasional daytime fatigue is common, but persistent tiredness should be evaluated.
Q: Does exercise help reduce fatigue?
A: Regular physical activity can boost energy levels and reduce feelings of tiredness.
Q: How can I reduce fatigue?
A: You can reduce fatigue by improving sleep quality, eating a healthy diet, exercising regularly, reducing screen time,managing stress, limiting alcohol and caffeine, and maintaining social connections.
Seeking Professional Help
If you are experiencing ongoing fatigue, our Private Medical GPs are here to assist.
Our experienced GPs can help identify the underlying causes of your fatigue and recommend appropriate treatments, if needed.
Book an appointment online or by calling us on 135 001.
