Evidence-Based Supplement & Herb Guides

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...

Frontal lobe disorder Overview and Key Warning Signs

Learn what frontal lobe disorder means, including key symptoms, behavioral signs, causes, risk factors, diagnostic context, and complications that may require urgent evaluation.

A frontal lobe disorder is not usually one single disease. It is a pattern of changes that can happen when the frontal lobes of...

Fregoli Delusion Explained: Symptoms, Causes, and Risks

Learn what Fregoli delusion is, how its symptoms and signs appear, what conditions may cause it, and when sudden misidentification beliefs may need urgent evaluation.

Fregoli delusion is a rare form of delusional misidentification in which a person believes that different people are actually one familiar person in disguise....

Free-Floating Anxiety Overview: Symptoms, Causes, and Complications

Free-floating anxiety is persistent worry or unease that is not tied to one clear trigger. Learn how it relates to generalized anxiety, common symptoms, risk factors, complications, and diagnostic context.

Free-floating anxiety is a persistent sense of worry, tension, or unease that does not seem attached to one clear trigger. A person may feel...

Fetishistic Disorder Overview and Diagnostic Criteria

Learn what fetishistic disorder means, how it differs from a non-disordered fetish, which symptoms and signs matter clinically, and when safety concerns require urgent evaluation.

Fetishistic disorder is a mental health diagnosis used when a person has recurrent, intense sexual arousal focused on a nonliving object or a highly...

Fetal Alcohol Spectrum Disorder Risk Factors, Symptoms, and Recognition

Clear, evidence-informed overview of fetal alcohol spectrum disorder, including symptoms, physical signs, causes, risk factors, diagnostic context, complications, and when concerns need prompt evaluation.

Fetal alcohol spectrum disorder is a lifelong neurodevelopmental condition linked to alcohol exposure before birth. It can affect brain development, learning, behavior, emotional regulation,...

Factitious Disorder: Symptoms, Causes, Warning Signs, and Safety Concerns

A clear, condition-focused overview of factitious disorder, including how symptoms may appear, how clinicians distinguish it from similar conditions, and why complications can become serious.

Factitious disorder is a serious psychiatric condition in which a person intentionally presents themselves, or someone in their care, as ill, injured, or impaired...