Focus
Central Fatigue
Central fatigue is reduced neural drive from the brain and spinal cord, lowering motivation and coordination despite capable muscles.
Central fatigue originates in the brain and spinal cord—motivation, coordination, and drive drop even when muscles could theoretically produce force. Sleep debt, heat, low carbs, and chronic stress amplify it.
Deloads and cognitive rest help more than another stimulant.
Common questions
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Can caffeine fix central fatigue?
Caffeine masks symptoms briefly but does not replace sleep, food, and load management. Fix the driver before relying on stimulants.
Related terms
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