Fatigue
Persistent low energy or tiredness that doesn't resolve with a normal night's sleep.
Possible causes
- • Poor sleep quality or duration
- • Iron or B12 deficiency
- • Thyroid dysfunction
- • Chronic stress
- • Underlying medical conditions
Associated systems
Conditions that can cause this
Optimisation advice
- • Prioritise consistent sleep timing
- • Check iron, B12 and thyroid levels if persistent
- • Add daily movement, even light walking
- • Reduce late caffeine intake
Medical red flags
- • Fatigue lasting more than a few weeks
- • Accompanied by unexplained weight loss
- • Accompanied by shortness of breath or chest pain
Related anatomy
Medical disclaimer
This page is for general education and does not replace personalised medical advice. If you have concerning symptoms, or before starting a new supplement, medication or exercise programme, speak with a qualified healthcare professional.