Mental Disorders

From depression to schizophrenia, mental disorders vary greatly in severity and impact on daily life. Learn about the causes and treatments available for a variety of mental disorders.

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What is dissociative identity disorder?

People with dissociative identity disorder (DID) form alternate personalities that take command of their body. Learn about the warning signs of DID and possible causes.

Paranoia and Paranoid Disorders

Paranoia is a personality disorder characterized by an overwhelming feeling of distrust and suspicion of other people and their motives. Learn about the signs and treatments for paranoia.

15 Celebrities With Mental Health Disorders

Celebrities aren't exempt from mental health issues. This list includes some of Hollywood and history's most well-known names who have or are dealing with various disorders.

10 Bipolar Disorder Myths

Sure, you know what bipolar disorder is. It’s that condition where you just have dramatic mood swings and you get lots done during the manic episodes … right? Not quite.

What is Body Integrity Identity Disorder?

What are the symptoms of Body Integrity Identity Disorder? Find out more about this rare and unusual mental disorder.

What is Alice in Wonderland Syndrome?

Learn more about the rare and unusual mental disorder, Alice in Wonderland Syndrome. Find out what causes these fairy tale-like symptoms.

What is Cotard's Syndrome?

What is Cotard's Syndrome? Learn more about this rare and unusual mental disorder.

How to Control an Obsession

Some of us may obsess more than we know. Ayana Rose-Williams, therapist from My Mom is Obsessed, shares her advice for taking a step back from such obsessive behavior.

10 Facts About Hoarding

Despite a pathological attachment to things they can't stop collecting or discard, hoarders are stressed by their clutter and its effect on their lives.

5 Famous Hoarding Cases

From the Bouvier Beales to the Collyer brothers -- some hoarding cases are so notorious, they're remembered decades after the fact. What were five of the most famous?

5 Ways to Help a Hoarder

Helping a hoarder doesn't mean spending a long weekend with a box of trash bags and gloves. Instead, being part of the solution takes a light, nonjudgmental touch.

Is hoarding an inheritable disease?

Can you inherit compulsive hoarding disorder from a parent? The answer is, you guessed it, complicated, and it starts with an understanding of genetics.

10 Celebrity Meltdowns

While some celebrity meltdowns are the result of ego or eccentricity, others are the result of something deeper. Here, we've pulled together a list of famous meltdowns that may have had roots in mental illness or drug and alcohol addiction.

Hoarding Signs and How to Get Help

In the home of a hoarder, piles of trash might reach the ceiling, and stacks of newspapers so crowd the kitchen that cooking is impossible. Sleeping, eating and bathing may take place in such clutter that health suffers. How can hoarders get help?

10 Strange Phobias

If you've seen Stephen King's "It" and developed a fear of clowns, you're not alone. With 9 percent of Americans suffering from phobias, your clown avoidance is just the tip of the iceberg. So what else has 20 million of us shaking in our boots?

5 Myths About Dissociative Identity Disorder

Most of us have days when we don't feel like ourselves. However, some people with dissociative identity disorder feel disconnected from their surroundings, actions and themselves all the time. Learn the myths from facts here.

Obsessive-Compulsive Disorder

Obsessive-Compulsive Disorder, a mental disorder in which a person has a repeated obsession that typically leads to a repeated compulsion.


Phobia, an intense, persistent, abnormal fear of an object, act, or situation.


Regression, in psychology, reverting to behavior that is less mature than is normal for a person's age and personality.


Delirium, a disturbance of the mind in which a person is unable to recognize the surroundings.


Hypochondria, an abnormal emotional condition in which a person is preoccupied with his health and the functions of his body organs.


Hysteria, a mental disorder arising from an unconscious emotional conflict.


Kleptomania, an irrational, irresistible impulse to steal. Kleptomaniacs frequently steal things that are of little value and utterly useless to them, and they often steal with little or no attempt at concealment.


Catalepsy, an abnormal condition in which the body and limbs are stiffened, but movable, and stay in whatever position they are placed.


Lycanthropy, a delusion in which a person imagines he or she is a wolf or other meat-eating animal.