Evidence-Based Supplement & Herb Guides

Facial tic disorder Signs, Risk Factors, and Related Conditions

Learn what facial tics are, how they appear, why they happen, how tic disorders are classified, and when unusual symptoms need professional evaluation.

Facial tics are repeated, sudden movements involving the muscles of the face, eyes, mouth, nose, jaw, or head. They may look like excessive blinking,...

Expressive Language Disorder Explained: Symptoms, Causes, and Diagnostic Context

Clear, condition-focused overview of expressive language disorder, including how it differs from speech and receptive language problems, common signs by age, causes, risk factors, complications, and diagnostic context.

Expressive language disorder affects how a person uses words, sentences, and language to communicate thoughts, needs, questions, stories, or ideas. It is most often...

Exogenous depression: Causes, Warning Signs, and Related Conditions

Exogenous depression refers to depression linked to outside stressors. Learn what the term means today, how symptoms appear, what triggers it, and when urgent evaluation matters.

Exogenous depression is an older term for depression that appears to arise after an identifiable outside stressor, such as a loss, relationship breakdown, job...

Exhibitionistic Disorder in Mental Health: Symptoms and Risk Factors

A clear, clinically grounded overview of exhibitionistic disorder, including symptoms, diagnostic context, causes, risk factors, related conditions, complications, and safety concerns.

Exhibitionistic disorder is a psychiatric condition in which a person has a persistent pattern of sexual arousal involving exposing their genitals to an unsuspecting,...

Executive function disorder: Signs in Children, Teens, and Adults

Learn what executive function disorder means, how symptoms appear across ages, what conditions can cause executive dysfunction, and when evaluation may be important.

Executive function problems can make ordinary responsibilities feel unusually difficult, even when a person is motivated, intelligent, and trying hard. Someone may understand what...

Excoriation disorder Overview: Skin Picking Symptoms and Risk Factors

Understand excoriation disorder, also called skin-picking disorder, including common symptoms, visible signs, causes, risk factors, diagnostic context, and possible complications.

Excoriation disorder is a mental health condition in which a person repeatedly picks at their skin enough to cause sores, scabs, bleeding, scarring, or...

Excessive sleepiness disorder: Common Symptoms, Risk Factors, and Medical Mimics

Excessive sleepiness can signal hypersomnolence, sleep apnea, narcolepsy, depression, medication effects, or other medical causes. Learn the symptoms, warning signs, risks, complications, and diagnostic context.

Feeling sleepy now and then is normal. Feeling unable to stay awake during ordinary daytime activities, especially after what seems like enough sleep, is...

Excessive Daytime Sleepiness (Hypersomnolence Disorder): Overview of Symptoms and Related Conditions

Understand excessive daytime sleepiness and hypersomnolence disorder, including symptoms, causes, risk factors, diagnostic context, mental health effects, and safety concerns.

Excessive daytime sleepiness is more than feeling tired after a short night. It means a person has a strong tendency to fall asleep or...

Excessive daydreaming disorder overview and diagnostic context

Excessive daydreaming disorder, often called maladaptive daydreaming, involves vivid, compulsive fantasy that can disrupt work, school, sleep, and relationships. Learn the symptoms, causes, risks, diagnostic context, and warning signs that need prompt evaluation.

Excessive daydreaming disorder is most often discussed in clinical research as maladaptive daydreaming. It describes a pattern of vivid, absorbing, hard-to-control fantasy activity that...

Episodic mood disorder: How Mood Episodes Affect Thinking, Sleep, and Behavior

Clear overview of episodic mood disorder, including depressive, manic, hypomanic, and mixed episodes, possible causes, risk factors, diagnostic context, complications, and urgent warning signs.

Episodic mood disorder is a term used for mood conditions in which emotional symptoms occur in distinct episodes rather than as brief, ordinary mood...

Epileptic psychosis symptoms, seizure timing, causes, and complications

Epileptic psychosis can involve hallucinations, delusions, confusion, and behavior changes related to seizure timing, brain networks, and medical risk factors. Learn the major symptom patterns, causes, diagnostic context, and urgent warning signs.

Epileptic psychosis is a psychotic state that occurs in the context of epilepsy or seizure activity. It can involve hallucinations, delusions, confused thinking, paranoia,...

Endogenous depression: Overview, Risk Factors, and Complications

Endogenous depression is an older term for depression that appears internally driven or biologically rooted. Learn how it relates to major depression, melancholic symptoms, risk factors, diagnostic context, and serious warning signs.

Endogenous depression is an older term for a form of depression thought to arise mainly from internal biological vulnerability rather than from an obvious...

Encopresis Overview: Symptoms, Causes, and Concerns

Encopresis is repeated stool soiling in a child old enough for bowel control. Learn the key symptoms, causes, risk factors, related conditions, diagnostic context, and possible complications.

Encopresis is a childhood elimination disorder in which a child repeatedly passes stool in places other than the toilet after the age when bowel...

Emotional dysregulation and Mental Health: Symptoms and Diagnostic Context

A clear guide to emotional dysregulation, including what it means, how symptoms can appear across ages, common causes, linked conditions, risk factors, complications, and diagnostic context.

Emotional dysregulation is difficulty managing the intensity, duration, expression, or behavioral impact of emotions. It can make ordinary stress feel overwhelming, make reactions seem...

Emotional detachment: Symptoms, Signs, Causes, and Complications

Learn what emotional detachment can feel like, how it may show up in relationships and daily life, what can contribute to it, and when symptoms may need professional evaluation.

Emotional detachment is a reduced sense of emotional connection to yourself, other people, or the world around you. For some people, it feels like...

Emotional dependency disorder causes, risk factors, and relationship effects

Emotional dependency can become harmful when reassurance seeking, fear of abandonment, and loss of autonomy interfere with safety, relationships, decisions, and daily functioning.

Emotional dependency can become a serious mental health concern when a person feels unable to function, make decisions, tolerate separation, or maintain self-worth without...

Ekbom Syndrome Symptoms and Signs: How Delusional Infestation Presents

Clear, medically grounded overview of Ekbom syndrome, including delusional infestation symptoms, visible signs, possible causes, risk factors, diagnostic context, complications, and urgent warning signs.

Ekbom syndrome is a rare psychiatric condition in which a person has a fixed belief that insects, parasites, worms, mites, fibers, or other organisms...

Dysthymia (Persistent Depressive Disorder): Overview, Symptoms, Risk Factors, and Diagnosis Context

A clear guide to dysthymia, also called persistent depressive disorder, including long-term symptoms, daily signs, causes, risk factors, diagnostic context, complications, and urgent warning signs.

Persistent depressive disorder is a long-lasting form of depression that can quietly shape a person’s mood, energy, self-worth, relationships, and daily functioning for years....

Dyssomnia Overview: Signs, Sleep Patterns, and Diagnostic Context

Dyssomnia is an umbrella term for sleep-wake problems affecting sleep quality, timing, or daytime alertness. Learn the key symptoms, causes, risk factors, diagnostic context, and complications.

Dyssomnia is an older clinical term for sleep problems that disturb the amount, quality, or timing of sleep. It is most often used to...

Dysphoria Overview: Meaning, Symptoms, Causes, and Complications

Understand dysphoria as a distressing mood state, including common symptoms, outward signs, possible causes, risk factors, diagnostic context, and complications.

Dysphoria is a state of emotional distress that can feel like deep unease, dissatisfaction, agitation, inner tension, or a painful sense that something is...