Depression Self-Test
Screen for depressive symptoms with a PHQ-9 style 9-question self-assessment. Get a depression severity score, interpretation, and personalised next steps. Not a medical diagnosis.
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Cognitive Fatigue Test
Estimate cognitive fatigue with a 10-question self-assessment covering focus, memory, mental stamina, and overload tolerance. Get a fatigue score, domain breakdown, and practical next steps.
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Cognitive Fatigue Test
This cognitive fatigue test helps you estimate how much mental tiredness may be affecting focus, memory, stamina, and overload tolerance. Compare the result with our Burnout Test and Stress Recovery Calculator if mental tiredness has become persistent rather than occasional.
⚠️This is a self-reflection tool, not a diagnosis. Persistent brain fog, confusion, or severe exhaustion may need professional attention.
0 / 10 questions answered0% complete
1
Focus
I lose focus faster than usual when a task requires sustained concentration.
2
Focus
I find myself rereading or repeating information because it does not register the first time.
3
Focus
Simple decisions feel mentally heavier than they should.
4
Memory
I forget details, steps, or recent information more often when I am tired.
5
Memory
My working memory feels overloaded when I have to hold multiple things in mind.
6
Stamina
Mentally demanding work drains me faster than it used to.
7
Stamina
I need longer recovery time after periods of thinking, studying, or screen-heavy work.
8
Stamina
By the end of the day, my thinking feels slower, foggier, or less precise.
9
Overload
Too many inputs, tabs, messages, or interruptions leave me mentally overloaded.
10
Overload
Even after resting, I still feel mentally depleted more often than I would expect.
What Is Cognitive Fatigue?
Cognitive fatigue is a state of mental tiredness where concentration, memory, decision-making, and information processing feel harder to sustain. It is not just being sleepy. It often feels like your brain is working slower, harder, or less cleanly than usual.
It can build gradually from stress, poor sleep, emotional load, long screen time, overstimulation, or too much context switching. For more related tools, visit the Mental Health category.
How This Cognitive Fatigue Test Works
This tool uses 10 questions covering focus, memory, mental stamina, and overload sensitivity. Your answers are converted into a cognitive fatigue score and a domain breakdown so you can see where mental drain is showing up most clearly.
1
Answer 10 questions
Each item reflects a common sign of mental tiredness, brain fog, or overload.
2
Scores are grouped by domain
You can see whether fatigue is hitting focus, memory, stamina, or overload tolerance the hardest.
3
A fatigue score is calculated
The overall result is converted into a simple 0 to 100 style score for easier interpretation.
4
Use the result to investigate load
The useful question is not whether you can push harder, but what is creating the mental drain.
Example: When Cognitive Fatigue Shows Up
Example: someone may think they are becoming lazy or unmotivated because tasks take longer, details slip, and decision-making feels irritatingly heavy. But after looking closer, the real issue may be cumulative mental fatigue from stress, poor recovery, and nonstop cognitive load.
That distinction matters because the solution is different. Instead of forcing more discipline, it may be more helpful to compare this result with the Mood Tracker or the Anxiety Test.
Common Signs of Cognitive Fatigue
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Reduced focus
You lose track of what you were doing, drift more easily, or struggle to sustain attention.
🧠
Memory slips
Information does not stick as easily and you may forget details or steps more often.
⏳
Slower thinking
Simple planning, reading, or decision-making feels heavier than usual.
📱
Overload sensitivity
Noise, tabs, notifications, and interruptions feel mentally harder to tolerate.
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Low mental stamina
You can start tasks, but staying mentally sharp for long periods feels difficult.
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Brain fog
Thinking may feel less precise, less fluid, or harder to trust by the end of the day.
When Cognitive Fatigue Needs More Attention
Cognitive fatigue becomes more important when it stops being occasional and starts affecting everyday functioning, confidence, or recovery.
⚠You feel mentally foggy or depleted most days rather than just during isolated busy periods
⚠Focus, memory, or decision-making problems are affecting work, study, or daily responsibilities
⚠Rest does not seem to clear the mental tiredness as much as you expect
⚠Fatigue is overlapping with burnout, anxiety, low mood, or poor sleep
⚠You are pushing through mentally, but functioning feels slower, rougher, or less reliable
Related Mental Health Tools
Burnout Test
Check whether cognitive fatigue is part of a wider pattern of overload, exhaustion, and detachment.
Stress Recovery Calculator
See whether poor recovery may be keeping your mind in a depleted state after stress.
Mood Tracker
Track whether mental fatigue is showing up alongside lower mood, low energy, or higher stress.
Mental Health Category
Browse the full category for anxiety, mood, burnout, recovery, and wellbeing tools.
Frequently Asked Questions
What is a cognitive fatigue test?
It is a self-reflection tool that estimates how much mental tiredness may be affecting focus, memory, stamina, and overload tolerance.
Is cognitive fatigue the same as burnout?
Not exactly. Cognitive fatigue can happen on its own, but it can also be one part of burnout, chronic stress, poor sleep, or emotional overload.
Can sleep affect cognitive fatigue?
Yes. Poor sleep is one of the most common drivers of cognitive fatigue because it reduces recovery, attention, and mental stamina.
What if my score is high?
A high score is a useful sign that your mental load and recovery may be out of balance. It is worth reviewing stress, sleep, burnout risk, and overall cognitive demands together.
Should I retake the test later?
Yes. It is especially useful when you compare different weeks to see whether fatigue improves with lower overload or better recovery.
Explore This Tool in Context
Cognitive Fatigue Test is part of the Mental Health collection. If you want a broader view of similar workflows, open the Mental Health category page or browse all QuickTools categories.
Common next steps after this tool include Depression Self-Test, Anxiety Test and Burnout Test.
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