A medical condition marked by severe fatigue, lack of energy, or inability to exert physical effort.
From 'an-' (without) combined with Greek 'ergon' meaning 'work' or 'energy.' This medical term literally means 'without work' and describes a state of extreme exhaustion.
Anergia is the medical term for what many COVID-long-haulers experience—it's not laziness, it's a genuine inability of your muscles and nervous system to generate the energy needed for normal activity.
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