Cognitive Fatigue Scale | Brain Fog & Mental Endurance Assessment

Cognitive fatigue is one of the most common and disruptive symptoms experienced in both post-concussion syndrome and ADHD. It often presents as brain fog, reduced mental endurance, difficulty sustaining attention, and increased overwhelm during complex tasks. Unlike general fatigue, cognitive fatigue worsens with mental effort and may not improve with rest alone. This Cognitive Fatigue & Mental Endurance Scale is designed to help you identify patterns in mental exhaustion, track how your brain responds to sustained thinking, and better understand how cognitive load impacts daily functioning.

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