Fatigue and decreased energy
A persistent reduction in physical energy and stamina, often experienced as a subjective sense of depletion, weakness, or inability to sustain effort. Closely related to fatigue but emphasising energy output rather than tiredness alone.
Quick answer
Fatigue and decreased energy (ICD-10: R53; ICD-11: MG22) reflect physical depletion beyond tiredness. Common causes include anaemia, hypothyroidism, depression, and nutritional deficiency. Strong evidence supports nutritional correction and aerobic exercise. Pacing is essential in ME/CFS. Post-exertional worsening is a red flag.
Recognition
Do any of these feel familiar?
Physical weakness or heaviness limiting activity
Reduced stamina compared to prior baseline
Energy that deteriorates rapidly with exertion
Need to rest more frequently during tasks
Feeling of being physically depleted despite adequate sleep
What is Fatigue and decreased energy?
A persistent reduction in physical energy and stamina, often experienced as a subjective sense of depletion, weakness, or inability to sustain effort. Closely related to fatigue but emphasising energy output rather than tiredness alone.
Approaches Commonly Explored
Commonly explored for conditions related to Fatigue and decreased energy, grouped by mechanism — select your subtype above to highlight the most relevant path.
How to use these approaches
Most people begin with Stabilise approaches, then progress toward Resolve and Sustain.
Energy production, nutrient metabolism, and cellular function.
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