What this Fatigue Assessment Scale FAS measures
This page does not administer a validated Fatigue Assessment Scale from research clinics, and it cannot diagnose chronic fatigue syndrome, depression, anemia, thyroid disease, or sleep disorders from one score. It measures how often you noticed habits clinicians and sleep teams often discuss when tiredness strains daily life, organized four ways: physical fatigue when drain, heaviness, unrefreshing sleep, or push-through guilt showed up; mental fatigue when concentration, fog, or slowed thinking lingered; motivation and activity strain when interest dropped, starts felt heavy, outings canceled from exhaustion, or movement cut back; and screener medical limits when unofficial totals replaced doctor visits, laziness labels, or crisis awareness. You answer 22 how-often statements about the past month, with reverse-worded items so one good sleep week, one walk, one symptom log, or one clinician plan cannot hide frequent strain on other days. Your responses also feed a second chart on closeness and trust habits, because shame about fatigue sometimes blocks asking for help. The total becomes an index from 0 to 100 where higher means more frequent reported fatigue strain on this screener. Your responses suggest intensity to discuss with support; they do not prove you failed at life.
Physical fatigue
How often body drain, recovery needs, and unrefreshing sleep showed up.
Mental fatigue
How often focus, fog, and slowed thinking tracked with tiredness.
Motivation and activity strain
How often low drive, canceled plans, or movement cuts followed exhaustion.
Screener medical limits
How often rest, tracking, clinician visits, and 988 awareness beat quiz myths.
How it works
Answer 22 frequency items
Rate each statement from Never to Very often for the past month. Tap Next after each answer.
Answers sort into four domains
Each answer feeds one of four fatigue groups, and every item also feeds a closeness and trust layer.
See your index and charts
You get a 0 to 100 index, a band, and two bar charts you can bring to a clinician.
Take the Fatigue Assessment Scale (FAS)
Answer 22 short statements to see your fatigue strain index, four domain bars, and a closeness and trust chart.
What your result means
Your index is the average of all 22 answers, scaled from 0 to 100, with reverse-worded items flipped first. Higher means more frequent reported fatigue strain on this screener. Read screener medical limits with physical and mental bars before you treat any total as diagnostic proof. Persistent hopelessness or safety worries deserve crisis support, not only sleep tips.
| Band | Index range | Typical reading |
|---|---|---|
| Lower reported fatigue strain | 0 to 35 | Fewer frequent physical, mental, motivation, or activity fatigue patterns in the past month. |
| Mixed reported fatigue strain | 36 to 65 | Some steadier stretches alongside physical drain, brain fog, motivation dips, or limit myths on other days. |
| Higher reported fatigue strain | 66 to 100 | Frequent physical, mental, or motivation fatigue; clinician follow-up and crisis lines may help more than another solo retake. |
Tips at a glance
A quick takeaway graphic with topic tips (not your personal quiz scores). Start the quiz for your index, bands, and charts.
What this quiz can and cannot tell you
Can tell you
- Name physical, mental, and motivation fatigue patterns in plain language for medical intake
- Highlight when rest, tracking, or clinician planning habits are missing
- Support honest conversations with clinicians without forcing a laziness story
- Offer a baseline if you retake after one week of protected sleep and gentle movement
Cannot tell you
- Diagnose chronic fatigue syndrome, depression, anemia, or thyroid disease from one score
- Replace sleep studies, labs, or medication decisions
- Prove you are lazy or faking from bar height
- Substitute for crisis care when hopelessness or safety fears feel urgent
Fatigue frequency, rest, and screener-not-diagnosis limits
People search fatigue assessment scale pages when ordinary tasks feel heavier, when brain fog outruns coffee, or when comment threads call tired adults lazy. Clinicians discuss fatigue as persistent tiredness that interferes with work, relationships, or self-care, often alongside sleep loss, pain, mood strain, anemia, thyroid shifts, or chronic illness. This online screener uses that reflection lens unofficially; it cannot replace interview-based assessment or tell you which single cause fits without your history.
Physical fatigue covers drain after routine tasks, recovery needs, muscle heaviness, and unrefreshing sleep, not whether you ever feel energetic. Honoring rest without guilt and noticing push-through myths are signals worth naming in visits even when bars run high. Mental fatigue covers concentration slips, fog, and slowed thinking without defaulting to character attacks. Motivation and activity strain covers lost interest, heavy starts, exhaustion-driven cancellations, and movement cuts compared with your baseline.
Real readers mix bars. You might score high on physical strain while moderate on mental fog, which often describes body-heavy weeks without constant focus loss. You might score high mental fog with low limit outreach, which can mean thinking suffers yet you still treat web totals as laziness proof. Reverse items catch overconfidence: steady basic energy, sustained focus, weekly pleasant plans, symptom logs, clinician visits, refusing licensed-form myths, and 988 awareness should not inflate a strain index meant to track frequency of harm-linked fatigue habits.
Pair results with siblings on this hub instead of stacking one verdict. Our why am I so tired quiz stays on general tiredness reflection when you want a sibling lane separate from FAS-style domain splits here. Our fatigue severity scale FSS-9 uses a shorter past-week lens when clinicians ask for a different recall window. Browse the mental health and clinical hub for more screeners. Bring bar examples to doctors, track sleep honestly, and call 988 when despair feels unsafe tonight.
Seasons and treatments change faster than one retake. A physical bar might spike during flu week while motivation bars sleep until recovery lands. When you share results, say unofficial screener. When you borrow tips, credit clinicians who ordered labs and friends who modeled rest without shame. Retake after one protected sleep month and watch whether screener medical limits bars rise even if strain drops, which often means you separated fatigue facts from laziness labels.
| Test | Focus |
|---|---|
| Why am I so tired quiz | General tiredness reflection rather than FAS-style physical, mental, and motivation domain splits on this page |
| Fatigue severity scale FSS-9 | Shorter past-week fatigue severity lens rather than this past-month four-domain FAS-style bank |
Fatigue Assessment Scale (FAS) FAQ
What does Fatigue Assessment Scale FAS measure?
It measures how often in the past month you noticed physical fatigue, mental fatigue, motivation and activity strain, and screener medical limit habits. You get an index from 0 to 100 plus four bars. It describes self-reported frequency on this screener, not a clinical diagnosis.
Is this the official published FAS from research clinics?
No. This is an unofficial reflection tool inspired by common fatigue domains. Licensed clinic forms and treating clinicians own official scoring; this page is for self-reflection only.
Does a high score mean I am lazy?
No. Fatigue strain is a medical and daily-life signal for many people. High bars mean you reported frequent items here, not moral failure. Clinicians evaluate causes; this quiz does not label character.
When should I see a doctor about these results?
Consider a visit when fatigue limits work, caregiving, or self-care for weeks, when sleep fixes do not help, or when mood and safety worries rise. Bring domain examples, not only the total. Call or text 988 (US) if hopelessness feels urgent.
Who reviewed this quiz?
Dr. Elena Vasquez reviewed the YMYL framing, medical limits, and crisis resource guidance. See our editorial policy for review standards.
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