hangover
Enable an agent to recognise a possible alcohol-related hangover, record its course and functional effects, and identify uncertainty that limits safe action.
Research draft, second pass
A second pass drafted this model: the structure a model of this thing needs, and what is known about it in the world. The line under this one says how the second half was obtained - researched against sources, or recalled without web access, in which case nothing here was read anywhere and every claim is a lead to verify. Unreviewed either way.
recalled by Codex without web access - no source was read
Researched by: Codex
Purpose and description
Enable an agent to recognise a possible alcohol-related hangover, record its course and functional effects, and identify uncertainty that limits safe action.
An alcohol hangover is a constellation of adverse physical and mental symptoms following a single episode of alcohol consumption, typically emerging as blood alcohol concentration approaches zero.
It can be Construct an episode timeline linking alcohol exposure, symptoms and assessments.; Compare symptom changes using consistent measures and explicit missing information.; Flag unresolved overlap with intoxication, withdrawal or another condition for appropriate assessment.; Record effects on specific activities without issuing unsupported fitness-for-duty conclusions.; Track attempted responses and outcomes without presenting temporal association as proof of a cure.; Compare recurrent episodes while preserving differences in exposure, sleep and reporting..
Distinguishing features
A candidate episode requires a plausible temporal relationship to alcohol consumption; headache or nausea alone does not establish hangover.
Record whether symptoms occur during drinking, as intoxication subsides or afterward; a next-morning timestamp alone does not distinguish hangover from residual intoxication.
Distinguish the symptom episode from a drinking pattern: one reported hangover does not establish alcohol use disorder.
Do not equate hangover with dehydration; record hydration-related observations separately from the overall symptom profile.
Keep withdrawal and other explanations separately assessable when the drinking history or symptom course makes attribution uncertain.
Scope
+ The relationship between a reported episode and preceding alcohol consumption
+ Physical, cognitive and emotional symptoms and their reported severity
+ Symptom onset, progression, resolution and recurrence
+ Effects on everyday activities and safety-sensitive tasks
+ Attribution uncertainty, responses attempted and observed outcomes
- Alcoholic beverages as products and their production
- Acute alcohol intoxication and alcohol poisoning as distinct conditions
- Alcohol withdrawal and alcohol use disorder as distinct conditions
- Independent diagnosis and treatment of other causes of similar symptoms
- General alcohol policy, population epidemiology and long-term alcohol-related disease
Characteristics
- Attribution status
- self-labelled; provisionally consistent; uncertain; alternative explanation identified Separates the person's label from the strength of evidence supporting it.
- Alcohol exposure context
- Linked drinking episode with beverage amounts, alcohol concentration, timing and uncertainty where available Supports temporal attribution without treating recalled consumption as an exact dose.
- Symptom profile
- Reported headache, nausea, fatigue, thirst, dizziness, concentration difficulty, mood changes and other symptoms; absent and unknown recorded separately Represents the actual episode without requiring every person to have the same symptoms.
- Symptom severity
- Per-symptom rating using a named scale, anchors and observation time Makes changes interpretable and prevents comparison of incompatible ratings.
- Episode timing
- Local timestamps and elapsed hours for last drink, first symptoms, assessments and reported resolution Describes the course and exposes uncertainty about onset or persistence.
- Residual intoxication assessment
- not assessed; unknown; suspected; measured alcohol present; measured alcohol not detected, with method and time Prevents symptom labels or subjective sobriety from substituting for an alcohol assessment.
- Functional impact
- Activity-specific difficulty, interruption or inability; self-reported or observed Connects symptoms to practical consequences without assuming severity directly determines capability.
- Response history
- Linked action, substance or rest period with timing, stated purpose and subsequent observations Records what was tried while keeping observed improvement separate from causal effectiveness.
Where this came from
wikidata · CC0 1.0
Drafted structure
Bundle to layer to finding to question, as the second pass will find it: 6 bundles · 11 layers · 16 findings · 26 questions.
Episode identity and boundaries Establishes what is being called a hangover and how securely the label applies.
Hangover is often self-labelled, and similar symptoms can belong to conditions requiring separate assessment.
Working definition
Records the definition and evidence used to identify a candidate episode.
Basis for the hangover label
Separate a person's description from an operational research definition or professional assessment.
- Which definition of hangover is being applied, and what observations qualify this episode under it? definition
- Who assigned the label, and was it based on self-report, a structured instrument or an assessment? provenance
Competing explanations
Keeps plausible alternatives and overlapping states visible.
Attribution limits
Record unresolved intoxication, withdrawal and other explanations without treating them as interchangeable with hangover.
- What evidence distinguishes this episode from ongoing intoxication, alcohol withdrawal or an unrelated illness? boundary
- Which observations make the hangover label insufficient for deciding what to do next? action
Alcohol exposure and context Connects the episode to preceding drinking and potentially relevant circumstances.
Attribution depends on exposure history, while uncertain recall and concurrent factors limit causal conclusions.
Preceding drinking
Captures consumption and timing at the level supported by available evidence.
Exposure reconstruction
Record beverage amounts, strengths and drinking times with their source and uncertainty.
- What was consumed, in what amounts and strengths, and when did drinking begin and end? measurement
- Which exposure details are recalled, independently recorded, estimated or unknown? provenance
Concurrent circumstances
Records factors that may complicate interpretation of the episode.
Sleep, food and other exposures
Keep sleep disruption, food and fluid intake, other substances, medications and pre-existing symptoms distinct from established causes.
- What sleep, food, fluid intake, medication use or other substance exposure accompanied the drinking episode? measurement
- Which symptoms were already present before drinking or have a plausible independent explanation? boundary
Symptoms and time course Represents the experienced episode through timed symptom observations.
A single hangover score can conceal different symptom patterns and different stages of recovery.
Symptom observations
Records physical, cognitive and emotional experiences without imposing a fixed symptom checklist as a diagnosis.
Symptom-specific burden
Capture presence and severity separately for each symptom, retaining the instrument and reporting source.
- Which physical, cognitive and emotional symptoms are present, absent or unassessed? measurement
- How severe is each reported symptom at this time, and which scale and anchors were used? measurement
Onset and recovery
Tracks the episode relative to drinking and distinguishes symptom resolution from broader recovery.
Episode trajectory
Record observed changes without assuming a universal duration or inferring alcohol clearance from elapsed time.
- When were symptoms first noticed, how have they changed, and which times are uncertain because the person was asleep or not observed? measurement
- Does reported recovery mean symptom disappearance, return to usual functioning or another explicitly stated endpoint? definition
Function and action boundaries Connects the episode to practical limitations and decisions requiring additional evidence.
Feeling better, functioning normally and being suitable for a safety-sensitive task are separate judgments.
Activity effects
Records consequences for the person's actual activities.
Task-specific limitations
Describe effects on concentration, movement, attendance, self-care or other relevant activities using concrete observations.
- Which planned or ordinary activities are difficult, interrupted or impossible during this episode? measurement
- Are these limitations self-reported, observed or assessed through a task, and how do they compare with the person's usual functioning? provenance
Decision limits
Identifies where the episode record cannot support an action by itself.
Assessment before conclusions
Preserve uncertainty when decisions concern safety-sensitive activity or symptoms outside a routine self-care context.
- What additional assessment is required before deciding suitability for driving, machinery use or another safety-sensitive activity? action
- Does the symptom pattern or course require a separate assessment under a sourced clinical protocol? action
Responses and recurrence Records attempted relief and repeated episodes while limiting unsupported causal claims.
Hangover remedies and personal pattern explanations need evidence beyond improvement after an action.
Attempted relief
Tracks actions taken during an episode and subsequent changes.
Response and outcome separation
Distinguish the response attempted, its intended effect, observed outcomes and evidence of effectiveness.
- What actions or substances were used for relief, at what times and in what amounts where applicable? measurement
- What changed afterward, and what evidence separates an action's effect from spontaneous recovery or other concurrent changes? provenance
Patterns across episodes
Compares repeated experiences without converting correlation into an individual causal rule.
Comparable episode history
Track recurrence, variability and comparability across episodes while keeping broader drinking-pattern assessment separate.
- Over what observation period have episodes occurred, and how completely were drinking occasions with and without hangover recorded? measurement
- Are exposure, sleep, symptom measures and observation times comparable enough to support a claimed personal pattern? boundary
Evidence and external alignment What the world already says about this thing, gathered so the model can be checked against it.
A model that cannot be lined up against existing standards, identifiers and practice cannot be adopted by anyone who already uses them.
Reported evidence
Findings from the breadth pass, kept separate from the structural claims.
Check these first
Recalled without web access and unsourced; every item is a lead to verify.
- The intended sense is assumed to be alcohol hangover; figurative uses are excluded.
- Mechanisms are multifactorial, and the relative contributions of inflammation, sleep disruption, alcohol metabolites and beverage congeners remain incompletely settled.
- No diagnostic code or formally established subtype taxonomy is asserted; researchers should verify the scoring protocol and validation context of any selected severity scale.
- Which of these check these first hold for the sense of hangover this model covers, and on what evidence? provenance
Real-world use
Recalled without web access and unsourced; every item is a lead to verify.
- Alcohol research examines hangover susceptibility, mechanisms, symptom severity and functional effects.
- Occupational and transport safety research examines residual impairment after blood alcohol concentration returns to zero.
- Clinical assessment distinguishes hangover symptoms from intoxication, alcohol withdrawal and other conditions.
- Which of these real-world use hold for the sense of hangover this model covers, and on what evidence? provenance
Typical measurements
Recalled without web access and unsourced; every item is a lead to verify.
- Symptom duration - Often several hours; may persist for 24 hours or longer - hour
- Hangover severity using the Acute Hangover Scale - Items scored from 0 to 7, with higher scores indicating greater severity - ordinal score
- Which of these typical measurements hold for the sense of hangover this model covers, and on what evidence? provenance
Failure modes and hazards
Recalled without web access and unsourced; every item is a lead to verify.
- Attention, reaction time and task performance may remain impaired when blood alcohol concentration has returned to zero.
- Headache, nausea, fatigue and disturbed sleep can interfere with daily activities.
- Attributing severe or unusual symptoms to hangover can obscure another condition, such as head injury or alcohol withdrawal.
- Treating dehydration as the sole cause overlooks the multiple processes involved.
- Consuming more alcohol to suppress symptoms adds further alcohol exposure without resolving the underlying episode.
- Which of these failure modes and hazards hold for the sense of hangover this model covers, and on what evidence? provenance
Regional variation
Recalled without web access and unsourced; every item is a lead to verify.
- Drinking patterns, beverage choices and cultural descriptions of hangover vary across populations.
- Population differences in alcohol-metabolising enzyme variants may affect responses to alcohol; their relationship to hangover susceptibility requires careful interpretation.
- Which of these regional variation hold for the sense of hangover this model covers, and on what evidence? provenance
Neighbouring kinds and how to tell them apart
Recalled without web access and unsourced; every item is a lead to verify.
- Alcohol intoxication - Intoxication reflects acute effects while alcohol is present; hangover typically develops as blood alcohol concentration approaches zero.
- Alcohol withdrawal syndrome - Withdrawal follows reduction or cessation after sustained heavy alcohol use; hangover can follow a single drinking episode without dependence.
- Dehydration - Dehydration is a deficit of body water that may contribute to symptoms but neither defines nor fully explains hangover.
- Alcohol use disorder - Alcohol use disorder is a persistent problematic pattern of alcohol use; a hangover is an acute post-consumption state and does not establish that diagnosis.
- Which of these neighbouring kinds and how to tell them apart hold for the sense of hangover this model covers, and on what evidence? provenance
What the second pass must settle
- Which operational definition best distinguishes hangover from residual intoxication while remaining usable when alcohol measurements are unavailable?
- Which symptom instruments support reliable comparison across people, languages and repeated episodes, and how should missing observations be handled?
- What evidence supports separating hangover-related effects from sleep disruption, concurrent substances and pre-existing symptoms?
- Which sourced clinical criteria should govern escalation when a self-labelled hangover may conceal another condition?
- Which relief or prevention claims have sufficiently strong evidence, and for which outcomes and populations?