Research digest — not medical advice. Full disclaimer · How we rate evidence
Red Flags
If you experience these, seek immediate medical attention.
- •Associated with chest pain or shortness of breath
- •Thoughts of self-harm
- •Sudden confusion
- •Abnormal bleeding
Overview
More than just being tired, fatigue is a lack of energy and motivation. It can be physical, mental, or both.
Possible Causes
Anemia
Lack of healthy red blood cells.
Thyroid Hypofunction
Thyroid gland not producing enough hormone.
Depression
Mood disorder causing persistent sadness and fatigue.
Sleep Apnea
Breathing stops and starts during sleep.
Home Care
- Improve sleep hygiene.
- Regular light exercise.
- Balanced diet rich in iron and vitamins.
- Stress management.
Research cited
Sources for this page are being compiled. Each research summary on Body Signals is backed by peer-reviewed literature — source links will be added as part of our ongoing editorial review.
Sidebar
When to see a doctor
- •Fatigue persists despite good sleep.
- •Interferes with work or social life.
- •Accompanying symptoms like hair loss or cold intolerance.
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Medical Disclaimer
This is a research summary, not medical advice. Body Signals is an independent research digest — it summarises published research for informational purposes and is not a healthcare provider. Consult a qualified healthcare provider before making changes to diet, exercise, supplements, or medication — especially if you have existing conditions or take prescription drugs.