Evidence-Based Supplement & Herb Guides

Monothematic Delusion Symptoms, Examples, Causes, and Warning Signs

Clear, medically grounded guide to monothematic delusion, including common examples, symptoms, causes, risk factors, diagnostic context, look-alike conditions, urgent warning signs, and possible complications.

A monothematic delusion is a fixed false belief organized around one main theme. The person may otherwise seem logical, emotionally present, and able to...

Mixed Episode Signs, Risk Factors, and Safety Concerns

Learn what a mixed episode means, how mixed depressive and manic symptoms can appear, what may cause them, and when urgent professional evaluation matters.

A mixed episode is a period of mood disturbance in which depressive symptoms and manic or hypomanic symptoms occur together or very close in...

Mixed Anxiety-Depressive Disorder: Symptoms, Signs, Causes, and Risks

Learn how mixed anxiety-depressive disorder is recognized, what symptoms and signs may appear, how it differs from anxiety or depression alone, and when evaluation may be important.

Mixed anxiety-depressive disorder describes a pattern in which anxiety and depressive symptoms occur together, overlap, and reinforce each other, but neither set of symptoms...

Misophonia Explained: Symptoms, Sound Triggers, and Causes

Misophonia can cause intense reactions to specific sounds or related cues. Learn the main symptoms, common triggers, possible causes, risk factors, diagnostic context, and complications.

Misophonia is a condition in which certain everyday sounds or related sensory cues trigger an unusually strong emotional, physical, and behavioral reaction. The reaction...

Mild Neurocognitive Disorder Symptoms, Signs, Causes, and Diagnostic Context

Learn what mild neurocognitive disorder means, how symptoms differ from normal aging and dementia, what causes may be involved, and when evaluation matters.

Mild neurocognitive disorder describes a noticeable decline in thinking abilities that is greater than expected for age, education, and usual functioning, but not severe...

Mild Intellectual Disability Signs in Children, Teens, and Adults

Clear guide to mild intellectual disability, including symptoms, signs by age, adaptive functioning, possible causes, risk factors, diagnostic context, and complications.

Mild intellectual disability is a neurodevelopmental condition that affects how a person learns, reasons, solves problems, and manages everyday demands. It begins during the...

Mild Cognitive Impairment (MCI): Causes, Risk Factors, and Cognitive Symptoms

A clear guide to mild cognitive impairment, including common symptoms, early signs, causes, risk factors, diagnostic context, complications, and how MCI differs from normal aging and dementia.

Mild cognitive impairment is a noticeable decline in thinking, memory, language, attention, or decision-making that is greater than expected with typical aging but not...

Metaphysical Anxiety Explained: Signs, Risk Factors, and Diagnostic Context

Learn what metaphysical anxiety can feel like, how it differs from ordinary existential thought, what symptoms and risk factors may appear, and when professional evaluation may be important.

Metaphysical anxiety is a term people often use for intense distress about existence, reality, death, consciousness, identity, meaning, or the nature of life itself....

Mental Exhaustion Disorder: Symptoms, Signs, Causes, and Complications

Learn what mental exhaustion disorder means, how symptoms appear, what conditions it can resemble, and when persistent mental depletion may need professional evaluation.

Mental exhaustion can feel like the mind has run out of usable energy. Everyday decisions take longer, focus slips, emotions feel closer to the...

Menstrual Psychosis: Symptoms, Signs, Causes, and Diagnostic Context

Menstrual psychosis is a rare pattern of recurrent psychotic or manic-like episodes linked to the menstrual cycle. Learn the signs, timing patterns, possible causes, risk factors, diagnostic context, and urgent warning concerns.

Menstrual psychosis is a rare, serious pattern of psychotic symptoms that appears to occur in close timing with the menstrual cycle. It is not...

Melancholic Depression Signs and How It Differs From Other Depression Types

Learn what melancholic depression means, how its symptoms differ from other depressive patterns, what causes and risk factors may be involved, and when professional evaluation is important.

Melancholic depression is a severe pattern of depressive illness marked less by ordinary sadness and more by a profound loss of emotional response, pleasure,...

Masochistic Personality Disorder Overview: Self-Defeating Patterns, Risks, and Complications

Learn what masochistic personality disorder means today, why it is not a current standalone diagnosis, and how self-defeating traits may overlap with trauma, depression, relationship patterns, and personality disorder assessment.

Masochistic personality disorder is a historical term for a proposed pattern of self-defeating personality traits. In modern clinical language, it is usually discussed as...

Masochism Disorder vs Consensual BDSM: Key Differences and Warning Signs

A clear guide to sexual masochism disorder, including how it differs from consensual BDSM, the symptoms and signs clinicians assess, possible causes, risk factors, complications, and when evaluation may be important.

Masochism disorder is best understood in clinical terms as sexual masochism disorder: a condition in which a person has recurrent, intense sexual arousal from...

Manic Episode Signs, Risk Factors, and Diagnostic Context

Learn what a manic episode can look like, how symptoms differ from hypomania or ordinary high energy, what may cause mania, and when urgent evaluation matters.

A manic episode is a serious change in mood, energy, behavior, and judgment that goes far beyond feeling unusually happy, productive, or confident. It...

Manic Depression Symptoms: Mania, Depression, and Mixed Features

Learn what manic depression means today, including bipolar disorder types, mania and depression symptoms, early warning signs, causes, risk factors, common lookalikes, and possible complications.

Manic depression is the older name for what is now usually called bipolar disorder. The term is still familiar to many people because it...

Malingering: Signs, Causes, Risk Factors, and Conditions It Can Mimic

Learn what malingering means, how it may appear, what signs clinicians consider, what it is commonly confused with, and why careful professional evaluation matters.

Malingering means intentionally fabricating, exaggerating, or misrepresenting physical or psychological symptoms for an external benefit. The benefit might involve avoiding a legal, school, work,...

Major Neurocognitive Disorder Causes, Symptoms, and Complications Explained

Learn what major neurocognitive disorder means, how symptoms differ from normal aging, what causes it, which risk factors matter, and when cognitive changes need professional evaluation.

Major neurocognitive disorder is the clinical term for a level of cognitive decline that is significant enough to interfere with independent daily life. Many...

Major Depressive Disorder Symptoms, Signs, Causes, and Risk Factors

Understand major depressive disorder symptoms, signs, causes, risk factors, diagnostic context, common look-alike conditions, complications, and when urgent evaluation may be needed.

Major depressive disorder is more than a difficult mood or a temporary reaction to stress. It is a diagnosable mental health condition in which...

Lying Disorder Overview: Pathological Lying and Pseudologia Fantastica

Persistent lying can reflect pathological lying, pseudologia fantastica, personality patterns, factitious behavior, malingering, delusions, or memory problems. Learn the signs, causes, risks, complications, and when professional evaluation may matter.

Persistent lying can be deeply confusing for families, partners, coworkers, and the person doing it. Many people use the phrase “lying disorder” to describe...

Lupus Psychosis Overview: Signs, Diagnosis Context, and Warning Symptoms

Lupus psychosis is a rare neuropsychiatric complication of systemic lupus erythematosus that can cause hallucinations, delusions, paranoia, and severe behavior changes. Learn the signs, causes, risk factors, diagnostic context, and urgent warning symptoms.

Lupus psychosis is a serious neuropsychiatric manifestation of systemic lupus erythematosus, an autoimmune disease that can affect the skin, joints, kidneys, blood vessels, brain,...