Evidence-Based Supplement & Herb Guides

Hikikomori Symptoms, Signs, Causes, and Risk Factors

Learn what hikikomori means, how prolonged social withdrawal may appear, what factors can contribute, how it overlaps with mental health conditions, and when isolation may signal risk.

Hikikomori describes a pattern of prolonged, severe social withdrawal in which a person becomes largely confined to home and disengages from school, work, family...

Helplessness disorder Meaning, Symptoms, and Mental Health Context

A clear guide to helplessness disorder as a persistent pattern of learned powerlessness, including symptoms, causes, risk factors, complications, diagnostic context, and urgent warning signs.

Helplessness can become more than a passing feeling. When a person repeatedly feels unable to influence what happens, unable to protect themselves, or unable...

Hebephrenia Overview: What the Term Means in Schizophrenia Today

A clear guide to hebephrenia, the historical term for disorganized schizophrenia, including modern diagnostic context, core symptoms, risk factors, complications, and warning signs that require urgent evaluation.

Hebephrenia is an older psychiatric term most closely associated with what was later called disorganized schizophrenia. In current diagnostic systems, it is generally not...

Hallucination Disorder: Symptoms, Causes, Risk Factors, and Warning Signs

Learn what hallucination disorder means, including common symptoms, warning signs, possible causes, risk factors, complications, and how clinicians evaluate hallucinations.

Hallucinations are sensory experiences that feel real even though there is no matching external source. A person may hear a voice, see a figure,...

Habitual offender syndrome: Overview of Signs, Causes, Risks, and Complications

Learn what habitual offender syndrome means, how it differs from formal diagnoses, and how symptoms, causes, risk factors, diagnostic context, and complications are understood.

Repeated offending can reflect a complex mix of personality traits, learned behavior, social conditions, substance use, trauma exposure, neurodevelopmental factors, and untreated psychiatric symptoms....

Guilt complex: Overview, Common Symptoms, Causes, and Mental Health Links

Learn what a guilt complex can look like, why excessive guilt happens, how it differs from normal remorse, and when guilt may signal depression, OCD, trauma, or safety concerns.

A guilt complex is a persistent pattern of excessive, inappropriate, or hard-to-resolve guilt that feels larger than the situation warrants. It can involve repeated...

Group Delusion: What It Means and How Shared Delusional Beliefs Develop

Learn what group delusion means, how shared delusions can develop, which symptoms and risk factors matter, and when psychosis-like beliefs may need urgent evaluation.

Group delusion is not usually used as a formal diagnosis in modern psychiatry, but it describes a real clinical concern: two or more people...

Grief Disorder Signs: When Bereavement Becomes Persistent and Impairing

Understand grief disorder, including prolonged grief symptoms, signs, causes, risk factors, diagnostic context, and complications that may affect mental health, functioning, and safety.

Grief can be intense, disorienting, and long-lasting without being a mental health disorder. A grief disorder is considered when bereavement remains persistently overwhelming, centered...

Grandiose delusions: Signs, Related Conditions, and Safety Concerns

Learn what grandiose delusions are, how they differ from confidence, which symptoms and warning signs to notice, and what conditions may be involved.

Grandiose delusions are strongly held beliefs that a person has extraordinary importance, power, identity, wealth, talent, mission, or connection to a famous or divine...

Globus hystericus: Symptoms, Physical Causes, and Anxiety Links

Globus hystericus is an older term for a lump-in-throat sensation without an obvious blockage. Learn how it feels, why it happens, how it differs from swallowing difficulty, and which warning signs need medical evaluation.

Globus hystericus is the older name for a persistent or recurring feeling of a lump, tightness, or foreign body in the throat when no...

Geschwind syndrome Explained: Overview, Symptoms, and Differential Diagnosis

A clear guide to Geschwind syndrome, including its debated link with temporal lobe epilepsy, core behavioral signs, possible causes, risk factors, diagnostic context, and warning signs.

Geschwind syndrome is a debated neuropsychiatric pattern most often discussed in relation to temporal lobe epilepsy. It is not a stand-alone psychiatric diagnosis in...

Geriatric depression in older adults: overview, risk factors, and warning signs

Understand how geriatric depression can appear in older adults, including emotional, physical, cognitive, and behavioral symptoms, common risk factors, diagnostic lookalikes, and complications that may need urgent evaluation.

Depression in later life is a serious health condition, not an expected part of aging. It can affect mood, thinking, sleep, appetite, pain perception,...

Generalized Anxiety Disorder vs Everyday Worry: Symptoms, Signs, and Complications

A clear, condition-focused overview of generalized anxiety disorder, including how GAD symptoms appear, what causes and risk factors may contribute, how it differs from everyday worry, and when evaluation may be important.

Generalized anxiety disorder is more than being worried during a stressful week. It involves persistent, hard-to-control anxiety about several parts of life, often with...

General adaptation syndrome: Stages, Symptoms, Causes, and Health Effects

General adaptation syndrome describes how the body responds to ongoing stress, including the alarm, resistance, and exhaustion stages, common symptoms, causes, risk factors, complications, and when evaluation may be needed.

General adaptation syndrome is a classic way of explaining how the body responds when stress is intense, repeated, or prolonged. It is not a...

Gender identity disorder: Signs of Distress, Causes, and Complications

Understand the outdated term gender identity disorder, how modern diagnosis frames gender dysphoria and gender incongruence, and what symptoms, risk factors, complications, and urgent warning signs may mean.

Gender identity disorder is an older diagnostic term that has largely been replaced in modern clinical language. In current practice, clinicians are more likely...

Gender Dysphoria Causes, Symptoms, and Related Conditions

A clear, condition-focused guide to gender dysphoria, including how symptoms can appear across ages, what may contribute to distress, related mental health risks, diagnostic context, and warning signs that need urgent evaluation.

Gender dysphoria describes clinically significant distress that can occur when a person’s gender identity does not align with the sex they were assigned at...

Ganser Syndrome Overview: Causes, Risk Factors, and Associated Conditions

Ganser syndrome is a rare psychiatric presentation marked by approximate answers, altered awareness, dissociative features, and possible functional or hallucination-like symptoms. Learn how clinicians think about signs, causes, risk factors, complications, and diagnostic context.

Ganser syndrome is a rare and controversial psychiatric syndrome most known for “approximate answers,” where a person gives replies that are obviously wrong but...

Functional cognitive disorder: Overview, Symptoms, Signs, Causes, Risk Factors, and Complications

Functional cognitive disorder can cause distressing memory, attention, and thinking symptoms without the typical pattern of progressive dementia. Learn the key symptoms, signs, causes, risk factors, complications, and diagnostic context.

Functional cognitive disorder, often shortened to FCD, describes persistent problems with memory, concentration, word-finding, or thinking efficiency that are real and distressing but do...

Frotteuristic Disorder: Overview, Symptoms, Causes, and When Evaluation Matters

Clear, clinically grounded overview of frotteuristic disorder, including symptoms, signs, diagnostic context, possible causes, risk factors, victim impact, and complications.

Frotteuristic disorder is a psychiatric condition involving recurrent, intense sexual arousal from touching or rubbing against a nonconsenting person. The central issue is not...

Frontotemporal Dementia Overview: Behavior, Language, Causes, and Warning Signs

Frontotemporal dementia often begins with behavior, personality, language, or executive function changes rather than memory loss. Learn the key signs, causes, risk factors, diagnostic context, and complications.

Frontotemporal dementia is a group of progressive brain disorders that most often affects behavior, personality, language, social judgment, and executive function before memory becomes...