The confusion index

Words people mix up.

Most mental health words have two lives: a precise clinical one and a loose everyday one. Nobody tells you which is being used. This is the running record of which words get mistaken for each other, and what the actual difference is.

22 full comparisons · 1293 confusion pairs across 279 entries

Full comparisons

These are the pairs that come up most, each with a short answer and a full side-by-side entry.

Commonly confused mental health term pairs, with the short answer for each
The pair	The short answer
ADD vs ADHD	ADD is an older, informal name for what's now called ADHD. Today everything falls under ADHD, and what people once called ADD is simply the inattentive presentation of ADHD, where attention problems stand out more than hyperactivity. Read the comparison →
ADHD vs anxiety	Both make it hard to concentrate, but for different reasons. In ADHD, attention itself works differently and the pattern is lifelong. In anxiety, worry crowds out focus. They also frequently occur together. Read the comparison →
ADHD vs Autism	ADHD is mainly about attention, impulse control, and restlessness. Autism is mainly about social communication and a strong need for sameness and routine. They look similar in places and often occur together, but they're separate conditions. Read the comparison →
Anxiety vs depression	Anxiety is the mind and body bracing for a threat, often with worry, restlessness, and a racing heart. Depression is a lasting low mood with loss of interest and energy. They feel different, but they overlap so often that many people have both at once. Read the comparison →
Anxiety vs stress	Stress is the response to a real, present demand, and it eases when the demand passes. Anxiety can show up without a current trigger and stick around after the stressor is gone. Read the comparison →
Bipolar disorder vs Borderline personality disorder	Bipolar disorder is a mood disorder with distinct episodes of mania or depression that last days to weeks. Borderline personality disorder is a pattern of fast, reactive mood shifts tied to relationships, often changing within hours. The timing and triggers are the main giveaways. Read the comparison →
Bipolar disorder vs depression	Depression (unipolar) means the mood only goes down. Bipolar disorder means the mood also goes up, into mania or hypomania. The depressed phases can look identical, which is why bipolar disorder is often missed at first. Read the comparison →
Burnout vs depression	Burnout is work-related exhaustion that tends to ease when you get distance from the job. Depression is a medical condition that reaches across all of life and doesn't lift just because you take time off. Read the comparison →
CBT vs DBT	CBT is a broad therapy focused on changing unhelpful thoughts and behaviors. DBT is a specialized form of CBT built for intense emotions, adding skills for distress tolerance, emotion regulation, and acceptance. Read the comparison →
Depersonalization vs Derealization	Both are forms of dissociation that often show up together. Depersonalization is feeling detached from yourself, as if watching your own life from outside. Derealization is feeling that the world around you is unreal, dreamlike, or far away. Read the comparison →
Grief vs Depression	Ordinary grief is a normal response to loss, not a disorder. Clinical depression is a diagnosable condition that can persist regardless of circumstances. They can look alike at first, and grief can sometimes tip into prolonged grief disorder or occur alongside depression. Read the comparison →
Intrusive thoughts vs compulsions	An intrusive thought is an unwanted thought, image, or urge that pops into your mind. A compulsion is something you do, a behavior or mental act, to relieve the distress that thought creates. In OCD, the first drives the second. Read the comparison →
Mania vs hypomania	Mania and hypomania are the same kind of elevated, energized mood state, but mania is more severe. Mania lasts longer, causes serious problems in daily life, and can include psychosis or require hospitalization. Hypomania is a milder, shorter version that doesn't reach that level of impairment. Read the comparison →
OCD vs OCPD	OCD is an anxiety-related disorder built around unwanted intrusive thoughts and the repetitive behaviors used to relieve them. OCPD is a personality disorder marked by a rigid, lifelong pursuit of order, control, and perfection. They share three letters but describe very different experiences. Read the comparison →
Panic attack vs anxiety attack	A panic attack is a defined clinical event: a sudden surge of intense fear that peaks within minutes. Anxiety attack isn't a clinical term at all. People use it for the slower, building wave of anxiety that can last much longer. Read the comparison →
Panic attack vs heart attack	A panic attack is a sudden surge of intense fear with strong physical symptoms that peak within minutes and aren't dangerous. A heart attack is a medical emergency caused by blocked blood flow to the heart. The symptoms can overlap closely, and you can't reliably tell them apart on your own, so any chest pain or doubt should be treated as an emergency. Read the comparison →
Psychiatrist vs psychologist vs therapist	A psychiatrist is a medical doctor who can prescribe medication. A psychologist holds a doctorate and provides therapy and testing. Therapist is a broader term for licensed master's-level professionals who provide talk therapy. Most psychologists and therapists don't prescribe. Read the comparison →
PTSD vs Complex PTSD	PTSD develops after a traumatic event and centers on re-experiencing, avoidance, and being on edge. Complex PTSD usually follows prolonged or repeated trauma and adds lasting difficulties with emotions, self-worth, and relationships. Complex PTSD includes the features of PTSD and then goes further. Read the comparison →
Sadness vs depression	Sadness is a normal emotion that's tied to a cause and lifts with time. Depression is a persistent medical condition: low mood and loss of interest most of the day, nearly every day, for at least two weeks, with real effects on function. Read the comparison →
Schizophrenia vs Dissociative identity disorder	These are two distinct conditions that pop culture constantly confuses. Schizophrenia is a psychotic disorder involving hallucinations and delusions. Dissociative identity disorder involves two or more distinct identity states and gaps in memory. Schizophrenia does not mean a split or multiple personalities. Read the comparison →
Stress vs anxiety vs worry	Worry is the thinking, anxiety is the body's alarm, and stress is your response to a load that's actually on you. They overlap, but they start in different places, and each one points to a different fix. Read the comparison →
Worry vs rumination	Worry looks forward and asks 'what if?' about things that might happen. Rumination looks back and asks 'why?' about things that already did. Both are repetitive loops, but they point in opposite directions. Read the comparison →

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Every confusion we've recorded

As we write each entry, we note the words it gets mistaken for. This is that list, in full. If a word you're looking up is here, the thing next to it is probably the thing you actually meant.

Every dictionary term and the terms it is commonly confused with
Term	Commonly confused with
Acceptance and Commitment Therapy	Cognitive behavioral therapy, Dialectical behavior therapy, Mindfulness-based cognitive therapy, Cognitive restructuring, Just giving up or being passive
Acute Stress Disorder	PTSD, Adjustment disorder, Panic disorder, Normal grief or distress after a hard event
ADHD	Anxiety, Autism spectrum disorder, Working memory problems, Laziness or lack of discipline, Normal high energy in kids
Adjustment Disorder	Depression, Major depressive disorder, Acute stress disorder, Generalized anxiety disorder, Normal stress from life changes
Agitation	Irritability, Anxiety, Akathisia, Mania, Anger or being in a bad mood
Agoraphobia	Panic disorder, Social anxiety disorder, Specific phobia, Generalized anxiety disorder, Being a homebody or introverted
Akathisia	Anxiety, Agitation, Tardive dyskinesia, Restless legs at night, Worsening of the original condition
Alcohol use disorder	Substance use disorder, Social or heavy drinking, A bad habit or willpower problem, Depression, A moral failing
Alogia	Flat affect, Avolition, Social withdrawal, Emotional blunting, Just being a quiet person
Amygdala	Hippocampus, Prefrontal cortex, Limbic system, Hypothalamus or HPA axis
Anhedonia	Depression, Emotional numbness, Low motivation, Apathy or burnout, Just being tired or bored
Anorexia Nervosa	Bulimia nervosa, Binge eating disorder, Body dysmorphic disorder, Dieting or picky eating, A lifestyle or vanity choice
Anticholinergic	Brain fog, Delirium, Sedation
Antidepressant	SSRI, SNRI, Atypical antidepressant, Mood stabilizer, Anti-anxiety pills or sedatives
Antipsychotic	Mood stabilizer, Antidepressant, Benzodiazepine, Sedatives or tranquilizers, Augmentation
Antisocial personality disorder	Narcissistic personality disorder, Borderline personality disorder, Psychopathy or sociopathy, Conduct disorder in youth, Being introverted or asocial
Anxiety	Generalized anxiety disorder, Panic attack, Stress, Fear or the fight-or-flight response, Excitement or nerves
Anxiolytic	Benzodiazepine, SSRI, Beta blocker
Anxious attachment	Avoidant attachment, Secure attachment, Codependency, Borderline personality disorder
Attachment	Attachment styles like anxious or avoidant, Borderline personality disorder, Separation anxiety disorder, Reactive attachment disorder, Codependency or people-pleasing
Atypical Antidepressant	SSRI, SNRI, Tricyclic antidepressant, Antidepressant in general, Atypical antipsychotics
Augmentation	Polypharmacy, Switching medications, Combination therapy, Titration, Treatment-resistant depression
Autism Spectrum Disorder	ADHD, Social anxiety disorder, Avoidant personality disorder, Being shy or introverted, Masking
Autonomic Nervous System	Sympathetic nervous system, Fight-or-flight response, Vagus nerve, Central nervous system, Adrenaline rush
Avoidance	Social withdrawal, Procrastination, Coping, Setting boundaries, Self-care or needing a break
Avoidant attachment	Anxious attachment, Secure attachment, Emotional numbness, Just being independent
Avoidant personality disorder	Social anxiety disorder, Autism spectrum disorder, Avoidance, Low self-esteem, Being shy or introverted
Avoidant/Restrictive Food Intake Disorder	Anorexia nervosa, Ordinary picky eating, Avoidance, Autism spectrum disorder
Avolition	Low motivation, Anhedonia, Flat affect, Alogia
Behavioral Activation	Cognitive behavioral therapy, Cognitive restructuring, Exposure therapy, Self-care, Just keeping busy
Benzodiazepine	SSRI, Antidepressant, Beta-blocker, Sleeping pills, Opioids or other sedatives
Beta-Blocker	Benzodiazepine, SSRI, Anti-anxiety medication, Blood pressure pills, Stimulant
Bias	Cognitive distortion, Confounding or correlation versus causation, Random error or chance, Placebo effect, Prejudice in the everyday sense
Binge Eating Disorder	Bulimia nervosa, Anorexia nervosa, Emotional or stress eating, Overeating or large meals, Lack of willpower
Biopsychosocial Model	Formulation, The medical or biological model, Differential diagnosis, Diagnosis itself, A treatment plan
Bipolar disorder	Major depressive disorder, Borderline personality disorder, Cyclothymia, ADHD, Everyday moodiness
Black Box Warning	Contraindication, FDA recall or ban, Off-label use, Side effect list, Drug warning label
Body Dysmorphic Disorder	Eating disorders like anorexia, OCD, Low self-esteem, Social anxiety disorder, Normal appearance concerns
Borderline personality disorder	Bipolar disorder, Complex PTSD, Narcissistic personality disorder, Major depressive disorder, Mood swings
Boundaries	Self-care, People-pleasing, Being controlling or cutting people off, Ultimatums, Gaslighting
Brain fog	Fatigue, Depression, ADHD, Dementia or memory loss, Dissociation
Bulimia Nervosa	Anorexia nervosa, Binge eating disorder, Body dysmorphic disorder, Occasional overeating, Dieting
Burnout	Depression, Stress, Chronic fatigue, Anhedonia, Nervous breakdown
Catastrophizing	Rumination, Overthinking, Cognitive distortion, Worry or anxiety, Realistic planning
Catatonia	Psychomotor agitation, Flat affect, Stupor or delirium, Severe depression
CBT	DBT, Psychodynamic therapy, Cognitive restructuring, Exposure therapy, Counseling in general
Circadian Rhythm	Sleep-wake cycle, Insomnia, Metabolism, Seasonal affective disorder, Biological clock for aging
Classical Conditioning	Operant conditioning, Reinforcement, Habituation, Learned helplessness, Conditioning in general
Clinically significant	Severity, Statistical significance, Functional impairment, Distress
Codependency	Being caring or generous, People pleasing, Anxious attachment, Healthy interdependence, Caregiver fatigue
Cognitive Distortion	Catastrophizing, Cognitive bias, Delusion, Rumination, Negative thinking
Cognitive Flexibility	Executive function, Working memory, Open-mindedness as a personality trait, Cognitive restructuring, Adaptability
Cognitive Restructuring	Cognitive distortion, CBT, Reframing or positive thinking, Mindfulness, Rumination
Comorbidity	Differential diagnosis, Dual diagnosis, Complication, Symptom overlap, Polypharmacy
Complex PTSD	PTSD, Borderline personality disorder, Dissociative identity disorder, Depression, Attachment difficulties
Compulsion	Obsession or intrusive thought, Addiction or craving, Habit, Impulse, Ritual or routine
Confidence Interval	P-value, Statistical significance, Margin of error, Effect size, Standard deviation
Contraindication	Side effect, Black box warning, Drug interaction, Allergy, Off-label use
Controlled substance	Physical dependence, Substance use disorder, Tolerance
Coping	Emotional regulation, Avoidance, Defense mechanism, Self-care, Resilience
Correlation and Causation	Confounding or bias, Statistical significance, Randomized controlled trial, Coincidence, Risk factor
Cortisol	Adrenaline, Fight or flight response, HPA axis, Stress itself, Dopamine
Couples Therapy	Family therapy, Individual therapy, Group therapy, Mediation, Marriage counseling
Course of illness	Prognosis, Episode, Severity, Diagnosis
Cyclothymia	Bipolar disorder, Hypomania, Persistent depressive disorder, Borderline personality disorder, Ordinary mood swings
DBT	CBT, Mindfulness, Schema therapy, Group therapy, Emotional regulation skills
Default Mode Network	Rumination, Overthinking, Metacognition, Just daydreaming
Defense Mechanism	Coping, Avoidance, Emotional regulation, Gaslighting, Self-sabotage
Delirium	Dementia, Paranoia, Hallucination, Brain fog, Just being confused or stubborn
Delusion	Hallucination, Paranoia, Strong belief or conviction, Cognitive distortion, Obsession or intrusive thought
Delusional Disorder	Schizophrenia, Schizotypal personality disorder, Paranoia, Delusion
Depersonalization	Derealization, Dissociation, Emotional numbness, Brain fog, Spacing out
Depersonalization-Derealization Disorder	Depersonalization, Derealization, Dissociation, Panic disorder
Depression	Sadness or grief, Major depressive disorder, Bipolar disorder, Burnout, Persistent depressive disorder
Derealization	Depersonalization, Dissociation, Psychosis, Brain fog, Panic attack
Diagnostic criteria	Symptoms, Clinically significant, A self-test, Severity
Differential Diagnosis	Final diagnosis, Comorbidity, Formulation, Prognosis, Mental status exam
Discontinuation syndrome	Relapse, Addiction or dependence, Withdrawal, Half-life, Serotonin syndrome
Disruptive Mood Dysregulation Disorder	Bipolar disorder, Oppositional defiant disorder, ADHD, Irritability
Dissociation	Derealization, Depersonalization, Psychosis, Dissociative identity disorder, Emotional numbness
Dissociative identity disorder	Schizophrenia, Dissociation, Borderline personality disorder, Complex PTSD, Bipolar disorder
Distress tolerance	Radical acceptance, Grounding techniques, Emotional regulation, DBT, Coping
Doomscrolling	Staying informed, Anxiety, Rumination, Overstimulation, Phone or screen overuse
Dopamine	Serotonin, Pleasure or happiness, Adrenaline, Norepinephrine, Endorphins
Double-Blind	Randomization, Single-blind, Placebo, Randomized controlled trial, Peer review
Drug interaction	Contraindication, Serotonin syndrome, Polypharmacy
DSM-5-TR	ICD, Diagnostic criteria, A treatment plan, A textbook of causes
Effect Size	P-value, Statistical significance, Correlation, Confidence interval, Sample size
Electroconvulsive Therapy	Transcranial magnetic stimulation, Treatment-resistant depression, Catatonia, The frightening version shown in old films
EMDR	Exposure therapy, Hypnosis, CBT, Cognitive restructuring, Flashback
Emotional blunting	Emotional numbness, Flat affect, Anhedonia, Depression, Just being calm or even-tempered
Emotional Dysregulation	Emotional regulation, Window of tolerance, Irritability, Distress tolerance
Emotional labor	Burnout, People-pleasing, Boundaries, Just being caring
Emotional Numbness	Anhedonia, Calm or relaxation, Dissociation, Depression, Apathy
Emotional Regulation	Emotional suppression, DBT, Coping, Self-control, Mindfulness
Episode	A bad week, Relapse, Course of illness, The condition itself
Etiology	Trigger, Blame, Biopsychosocial model, Prognosis
Executive function	Intelligence or IQ, Working memory, ADHD, Motivation, Cognitive flexibility
Exposure and Response Prevention	Exposure therapy, CBT, OCD, Reassurance seeking, Compulsion
Exposure Therapy	Exposure and response prevention, Flooding, Habituation, Avoidance, EMDR
Family Therapy	Couples therapy, Individual therapy, Group therapy, Internal family systems, Marriage counseling
Fatigue	Ordinary tiredness, Burnout, Depression, Anhedonia, Hypersomnia
Fight-or-Flight	Panic attack, Anxiety, Freeze response, Sympathetic nervous system, Cortisol
First-line treatment	Augmentation, Treatment-resistant depression, Maintenance treatment
Flashback	Intrusive thought, Ordinary memory, Hallucination, Dissociation, Rumination
Flat Affect	Emotional blunting, Emotional numbness, Avolition, Alogia
Formulation	Diagnosis, Differential diagnosis, Biopsychosocial model, Prognosis, Treatment plan
Functional impairment	Distress, Severity, Clinically significant, Disability
GABA	Glutamate, Serotonin, Benzodiazepine, GABA supplements, Dopamine
Gambling disorder	Recreational gambling, Substance use disorder, Impulsivity, Compulsion, Mania
Gaslighting	Disagreement or misremembering, Manipulation, Narcissistic personality disorder, Emotional abuse, Lying
Generalized anxiety disorder (GAD)	Everyday worry or stress, Panic disorder, Social anxiety disorder, OCD, Overthinking
Generic drug	Brand-name medication, Medication adherence, Psychotropic
Glutamate	GABA, MSG, Glutamine, Dopamine, Neuroplasticity
Grandiosity	Healthy self-confidence, Mania, Narcissistic personality disorder, Delusion, Hypomania
Grounding techniques	Distress tolerance, Dissociation, Flashback, Coping, Just distracting yourself
Group Therapy	Support group, Individual therapy, Family therapy, DBT, Couples therapy
Gut-Brain Axis	Vagus nerve, Serotonin, Stress, The idea that probiotics cure mental illness
Habituation	Sensitization, Exposure therapy, Tolerance, Classical conditioning, Numbing
Half-Life	Duration of effect, Discontinuation syndrome, Titration, Onset of action, Steady state
Hallucination	Delusion, Illusion, Vivid imagination or daydream, Flashback, Intrusive thought
High-functioning anxiety	Generalized anxiety disorder, Perfectionism, Being a hard worker, Burnout, Type A personality
Hippocampus	Amygdala, Hypothalamus, Limbic system, Prefrontal cortex
Histrionic Personality Disorder	Narcissistic personality disorder, Borderline personality disorder, People-pleasing, Low self-esteem, Just being outgoing or dramatic
Hoarding disorder	Collecting, Being messy or cluttered, OCD, Compulsion
Hopelessness	Sadness or low mood, Worthlessness, Learned helplessness, Despair or grief, Suicidal ideation
HPA Axis	Cortisol, Fight-or-flight, Autonomic nervous system, Sympathetic nervous system
Hyperarousal	Hypervigilance, Fight or flight, Anxiety, Panic attack, Just being an alert, high-energy person
Hypersomnia	Insomnia, Fatigue, Being well-rested or liking sleep, Anhedonia
Hyperventilation	Panic attack, Shortness of breath from a medical cause, Anxiety, Asthma attack
Hypervigilance	Paranoia, Anxiety, Fight-or-flight, Being cautious or alert
Hypomania	Mania, A normal good mood or burst of motivation, Bipolar disorder, Grandiosity
Illness Anxiety Disorder	Somatic symptom disorder, Normal concern about a real symptom, Generalized anxiety disorder, OCD
Imposter Syndrome	Low self-esteem, Humility or realistic self-assessment, Social anxiety disorder, Self-doubt, Cognitive distortion
Informed Consent	Signing a consent form, Confidentiality, Psychoeducation, A waiver of liability
Inhibition	Being shy or socially inhibited, Willpower or self-control, Executive function, Impulsivity
Inner child	A separate personality, Dissociation, Self-compassion, Regression, Blaming your parents
Insomnia	Hypersomnia, Staying up late by choice, Sleep deprivation, Circadian rhythm
Intergenerational Trauma	Complex PTSD, Attachment, Inner child, PTSD
Intermittent Explosive Disorder	Oppositional defiant disorder, Antisocial personality disorder, Bipolar disorder, Agitation
Internal Family Systems	Dissociative identity disorder, Family therapy, Psychodynamic therapy, Schema therapy
Interpersonal Therapy	CBT, Couples therapy, Psychodynamic therapy, Family therapy
Intrusive Thought	Rumination, A hidden wish or intent, Compulsion, Hallucination, Overthinking
Irritability	Agitation, Anger, Being a mean or difficult person, Mania
Languishing	Depression, Anhedonia, Burnout, Boredom, Laziness
Learned Helplessness	Laziness or lack of willpower, Depression, Hopelessness, Self-efficacy
Levels of Care	Partial hospitalization, Inpatient vs outpatient, Residential treatment, Severity of diagnosis
Limbic System	Amygdala, Hippocampus, Prefrontal cortex, The emotional brain vs the logical brain
Lithium	Mood stabilizer, Antipsychotic, Antidepressant, A sedative
Locus of Control	Self-efficacy, Optimism or confidence, Learned helplessness, Resilience
Love bombing	Healthy new-relationship excitement, Generosity, Gaslighting, Trauma bonding, Anxious attachment
Low self-esteem	Self-esteem, Humility or realistic self-assessment, Worthlessness, Imposter syndrome
Maintenance treatment	Remission, Relapse, Taper
Major depressive disorder (MDD)	Depression, Persistent depressive disorder, Bipolar disorder, Ordinary sadness or grief, Adjustment disorder
Mania	Hypomania, Being happy, excited, or productive, Bipolar disorder, Grandiosity, Psychosis
MAOI	SSRI, Tricyclic antidepressant, SNRI, Antidepressant
Masking	Lying or being fake, Autism spectrum disorder, People-pleasing, Coping
Medication adherence	Relapse, Treatment-resistant depression, Maintenance treatment
Mental Status Exam	A written test or quiz, Differential diagnosis, An IQ or personality test, Formulation
Meta-Analysis	Systematic review, Randomized controlled trial, A single large study, Peer review
Metacognition	Intelligence, Rumination, Overthinking, Self-awareness
Mindfulness-Based Cognitive Therapy	CBT, Mindfulness-based stress reduction (MBSR), Acceptance and commitment therapy, Plain meditation, DBT
Mood	Emotion, Affect, Temperament, Mood disorder, Feelings
Mood Stabilizer	Antidepressant, Antipsychotic, Lithium, Benzodiazepine, Anticonvulsant
Motivation	Anhedonia, Willpower, Discipline, Self-efficacy, Apathy
Motivational Interviewing	CBT, Coaching, Supportive therapy, Psychoeducation, Persuasion or advice-giving
Narcissistic personality disorder	Antisocial personality disorder, Borderline personality disorder, Healthy self-confidence, Grandiosity, Narcissistic traits
Narcolepsy	Hypersomnia, Insomnia, Fatigue, Just not getting enough sleep
NDRI	SSRI, Stimulant, Atypical antidepressant
Nervous Breakdown	Burnout, Panic attack, Major depressive episode, Acute stress disorder, Mental health crisis
Neuroplasticity	Neurogenesis, Brain development, Learning, Cognitive flexibility, Recovery after injury
Neurotransmitter	Hormone, Receptor, Serotonin, Dopamine, Synapse
Norepinephrine	Adrenaline (epinephrine), Dopamine, Serotonin, Cortisol, Noradrenaline
Obsessive-compulsive disorder (OCD)	OCPD, Generalized anxiety disorder, Intrusive thoughts, Being a perfectionist, Body dysmorphic disorder
OCPD (obsessive-compulsive personality disorder)	OCD, Perfectionism, Narcissistic personality disorder, Type A personality, Conscientiousness
Off-Label	Experimental or investigational drug, Unapproved or illegal use, Black box warning, Contraindication, Generic medication
Onset	Diagnosis date, Prodrome, Trigger, Etiology
Operant Conditioning	Classical conditioning, Reinforcement, Punishment, Habituation, Behaviorism
Opioid use disorder	Physical dependence, Tolerance, Substance use disorder, Addiction, Withdrawal
Oppositional defiant disorder	Conduct disorder, ADHD, Normal childhood defiance, Disruptive mood dysregulation disorder, Intermittent explosive disorder
Overstimulation	Sensory overload, Hyperarousal, Emotional dysregulation, Anxiety
Overthinking	Rumination, Worry, Anxiety, Intrusive thoughts, Racing thoughts
Oxytocin	Dopamine, Serotonin, Vasopressin, Endorphins, OxyContin
P-Value	Statistical significance, Effect size, Confidence interval, Probability the result is true, Clinical significance
Panic attack	Panic disorder, Anxiety attack, Heart attack, Hyperventilation, Acute stress reaction
Panic disorder	Panic attack, Generalized anxiety disorder, Agoraphobia, Social anxiety disorder, Health anxiety
Paranoia	Delusion, Anxiety, Hypervigilance, Paranoid personality disorder, Everyday distrust
Partial Hospitalization	Inpatient hospitalization, Intensive outpatient program (IOP), Residential treatment, Levels of care, Outpatient therapy
Peer Review	Replication, Systematic review, Editorial review, Fact-checking, Preprint
People-pleasing	Low self-esteem, Boundaries, Kindness or agreeableness, Codependency, Fawning
Perfectionism	High standards or conscientiousness, Obsessive-compulsive disorder, Self-sabotage, Burnout
Persistent depressive disorder	Major depressive disorder, Dysthymia, Depression, Cyclothymia, Adjustment disorder
Physical dependence	Substance use disorder, Tolerance, Withdrawal
Placebo	Placebo effect, Nocebo effect, Double-blind, Control group, Sugar pill
Polypharmacy	Drug interaction, Augmentation, Combination therapy, Overmedication, Off-label prescribing
Post-traumatic stress disorder (PTSD)	Acute stress disorder, Complex PTSD, Adjustment disorder, Generalized anxiety disorder, Panic disorder
Postpartum depression	Baby blues, Major depressive disorder, Anxiety, Postpartum psychosis, Adjustment disorder
Prefrontal Cortex	Executive function, Amygdala, Frontal lobe, Limbic system, Working memory
Premenstrual Dysphoric Disorder	PMS (premenstrual syndrome), Depression, Bipolar disorder, Generalized anxiety disorder, Major depressive disorder
Pressured speech	Mania, Hypomania, Racing thoughts, Anxiety, Just being a fast talker
PRN	Scheduled or standing dose, Titration, Benzodiazepine, Off-label use, Dose tapering
Prodrome	Relapse, Early warning signs, Trigger, Acute episode, Residual symptoms
Prognosis	Diagnosis, Remission, Relapse, Differential diagnosis, Formulation
Prolonged Grief Disorder	Major depressive disorder, Depression, Adjustment disorder, PTSD
Provisional diagnosis	Differential diagnosis, Rule out, Final diagnosis, Formulation
Psychodynamic Therapy	Psychoanalysis, CBT, Interpersonal therapy, Supportive therapy, Schema therapy
Psychoeducation	Psychotherapy, Cognitive restructuring, Group therapy, Informed consent, Coping skills
Psychomotor agitation	Agitation, Psychomotor retardation, Akathisia, Mania, Just having a lot of nervous energy
Psychomotor retardation	Fatigue, Anhedonia, Catatonia, Psychomotor agitation, Brain fog
Psychotropic	Psychoactive, Antidepressant, Controlled substance
Racing thoughts	Rumination, Overthinking, Mania, Intrusive thoughts, Flight of ideas
Radical acceptance	Distress tolerance, DBT, Self-compassion, Coping, Giving up or approving of what happened
Randomized Controlled Trial	Observational study, Meta-analysis, Double-blind design, Placebo, Systematic review
Reinforcement	Punishment, Negative reinforcement, Operant conditioning, Classical conditioning, Reward
Rejection Sensitive Dysphoria	Emotional dysregulation, Anxious attachment, Low self-esteem, Social anxiety disorder
Relapse	Remission, Prodrome, Discontinuation syndrome, Recurrence, Treatment resistance
Remission	Recovery, Relapse, Cure, Response to treatment, Prognosis
Resilience	Toughness, Coping, Self-efficacy, Grit, Emotional suppression
Reuptake	Neurotransmitter, Serotonin, SSRI, The chemical imbalance idea of depression
Rumination	Overthinking, Worry, Intrusive thoughts, Problem-solving, Obsessions
Schema Therapy	CBT, Cognitive restructuring, Psychodynamic therapy, DBT, Internal family systems
Schizoaffective disorder	Schizophrenia, Bipolar disorder with psychosis, Major depression with psychotic features, Delusional disorder, Brief psychotic disorder
Schizoid Personality Disorder	Avoidant personality disorder, Schizotypal personality disorder, Autism spectrum disorder, Social withdrawal
Schizophrenia	Dissociative identity disorder, Schizoaffective disorder, Bipolar disorder with psychosis, Delusional disorder, Psychosis
Schizotypal Personality Disorder	Schizophrenia, Schizoid personality disorder, Delusional disorder, Paranoia
Seasonal affective disorder	Winter blues, Major depressive disorder, Persistent depressive disorder, Bipolar disorder, Circadian rhythm disruption
Secure attachment	Anxious attachment, Avoidant attachment, Attachment, Resilience
Self-Care	Self-indulgence, Coping, Boundaries, Self-soothing, Treatment
Self-compassion	Self-esteem, Self-care, Radical acceptance, Self-pity or making excuses
Self-Efficacy	Self-esteem, Confidence, Locus of control, Learned helplessness, Motivation
Self-Esteem	Self-efficacy, Self-confidence, Low self-esteem, Imposter syndrome, Narcissism
Self-Harm	Suicidal ideation, Non-suicidal self-injury, Emotional dysregulation, Borderline personality disorder, Dissociation
Self-sabotage	Perfectionism, Procrastination or overthinking, Low self-esteem, Just being lazy
Sensory overload	Overstimulation, Hyperarousal, Panic attack, Anxiety, Just disliking noise or crowds
Separation anxiety disorder	Generalized anxiety disorder, Agoraphobia, Attachment style, Panic disorder, School refusal
Serotonin	Dopamine, Norepinephrine, Endorphins, SSRIs, Serotonin syndrome
Serotonin Syndrome	Medication side effects, Neuroleptic malignant syndrome, Discontinuation syndrome, Panic attack, Serotonin
Severity	Suffering, Functional impairment, Prognosis, Specifier
SNRI	SSRI, Antidepressant, Tricyclic antidepressant, Stimulant
Social anxiety disorder	Shyness, Introversion, Generalized anxiety disorder, Panic disorder, Avoidant personality disorder
Social withdrawal	Introversion, Needing alone time, Anhedonia, Avoidance, Depression
Somatic symptom disorder	Illness anxiety disorder, Hypochondria, Health anxiety, Faking symptoms, Generalized anxiety disorder
Specific phobia	Ordinary fear, Social anxiety disorder, Agoraphobia, Panic disorder, Aversion or dislike
Specifier	Diagnosis, Severity, Subtype, Comorbidity
SSRI	SNRI, Antidepressant, Serotonin, Benzodiazepine, Serotonin syndrome
Statistical Significance	P-value, Effect size, Clinical importance, Confidence interval, Proof or certainty
Stimulant	Caffeine or energy drinks, Antidepressant, ADHD, Recreational drugs, Dopamine
Stress	Anxiety, Burnout, Adjustment disorder, Fight-or-flight, Being busy
Substance use disorder	Heavy or social use, Alcohol use disorder, Opioid use disorder, Lack of willpower, Gambling disorder
Suicidal Ideation	Self-harm, Hopelessness, Intrusive thought, Worthlessness, Wanting the pain to stop
Supportive Therapy	Psychodynamic therapy, CBT, Counseling, Venting to a friend, Coaching
Sympathetic Nervous System	Parasympathetic nervous system, Autonomic nervous system, Fight-or-flight, Vagus nerve, Adrenaline rush
Syndrome	Disease, Disorder, Diagnosis, Etiology
Systematic Review	Meta-analysis, Narrative review article, Randomized controlled trial, Peer review, Literature search
Taper	Withdrawal, Titration, Discontinuation syndrome
Tardive Dyskinesia	Akathisia, Tics, Parkinsons-like side effects, Tremor, Antipsychotic
Theory of Mind	Empathy, Autism spectrum disorder, Emotional intelligence, Metacognition, Mind reading
Therapeutic Alliance	Friendship, Transference, Rapport, Therapy method or technique, Liking your therapist
Titration	Tapering, Augmentation, Dosing, Half-life, Discontinuation syndrome
Tolerance	Physical dependence, Substance use disorder, Withdrawal
Tourette syndrome	Tics or transient tic disorder, OCD, ADHD, Habits or fidgeting, Tardive dyskinesia
Toxic positivity	Healthy optimism, Gratitude, Validation, Encouragement, Emotional suppression
Transcranial Magnetic Stimulation	Electroconvulsive therapy, Treatment-resistant depression, Antidepressant, Brain surgery or an implant
Transference	Countertransference, Therapeutic alliance, Projection, Attachment, Having a crush on your therapist
Trauma bonding	Love for a flawed partner, Codependency, Love bombing, Anxious attachment, Ordinary relationship conflict
Trauma dumping	Venting, Healthy vulnerability, Asking for support, Oversharing, Codependency
Treatment-Resistant Depression	Major depressive disorder, Untreated depression, Persistent depressive disorder, Bipolar depression, Relapse
Trichotillomania	OCD, Skin picking, A bad habit, Compulsion, Self-harm
Tricyclic Antidepressant	SSRI, SNRI, MAOI, Antidepressant, Antipsychotic
Triggered	Being annoyed or offended, Flashback, PTSD, Stress response, Panic attack
Vagus Nerve	Parasympathetic nervous system, Sympathetic nervous system, Autonomic nervous system, Spinal cord, Vagal tone
Validation	Boundaries, Self-compassion, People-pleasing, Emotional labor
Washout period	Taper, Half-life, Drug interaction
Window of Tolerance	Hyperarousal, Emotional dysregulation, Distress tolerance, Grounding techniques
Withdrawal	Discontinuation syndrome, Relapse, Physical dependence
Working Memory	Short-term memory, Long-term memory, Executive function, Attention or focus, Brain fog
Worry	Anxiety, Rumination, Overthinking, Stress, Fear
Worthlessness	Low self-esteem, Guilt, Hopelessness, Shame, Depression
Z-drug	Benzodiazepine, Physical dependence, Melatonin

Questions

Why do so many mental health words get mixed up?

Because most of them arrived in everyday speech through a side door. A word like trauma or dissociation carries a precise clinical meaning and a loose casual one at the same time, and nobody announces which one is being used. The clinical meaning is usually narrower than people expect.

Does using the wrong word actually matter?

Sometimes it matters a great deal. Physical dependence and addiction get used interchangeably, and the confusion keeps people from taking medication that would help them. A panic attack and an anxiety attack are not the same thing, and only one of them is a defined clinical event. Getting the word right is often how you get to the right conversation.

Is there a printable version?

Yes. The Words People Mix Up PDF is free, needs no signup, and covers the same comparisons in a form you can print or keep on a phone.

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