The Mental Disorders Quiz

It is the Diagnostic and Statistical Manual of Mental Disorders, and it provides standards for classifying mental problems.

Some 44 million people in the country were hindered by mental illness that year.

About 20 percent of people may have a mental disorder. That includes everything from depression to attention deficit disorder to anxiety.

Some behaviors that seem abnormal in one culture are totally normal in others.

ADHD is usually diagnosed in childhood and often lasts into adulthood.

Socially deviant behaviors are not considered a type of mental illness.

Extreme reactions can be a sign of a personality disorder. Affected people may have unstable lives that sometimes end in suicide.

About 300 disorders are listed in the DSM. With each edition, disorders are reclassified, merged and sometimes removed.

Depression is one of the most common mental illnesses — it affects about 400 million people.

The International Classification of Diseases (ICD) is the international version of the DSM and is created by American mental health professionals.

Traumatic events are sometimes blamed for the kind of disconnection that occurs in depersonalization disorder.

About 2 percent of the population has bipolar disorder. It's similar to the number of people who have schizophrenia.

Manipulative people might fake a disorder to get what they want from others.

People with narcissistic personality disorder need constant approval yet have very little empathy for others.

About 20 million people have schizophrenia, which probably results from a blend of hereditary and environmental variables.

Some people call this severe type of depression clinical or major depression.

Combat soldiers and survivors of violent events often exhibit signs of post-traumatic stress disorder.

People with agoraphobia might lock themselves in their homes for months at a time.

The cycle of overeating and guilt may affect a person with bulimia for years.

In conversion disorder, extreme mental distress can manifest physical symptoms.

About 10 percent of Americans take antidepressants. This class of drugs is a common one for mood disorders.

People who are affected by this syndrome have delusional jealousy that hampers their lives.

Schizophrenia and extreme bipolar disorder are two examples of psychotic disorders.

Sometimes the words "sociopath" or "psychopath" are used (with varying degrees of accuracy) to describe people with antisocial personality disorder.

Fortunately, most people can recover from adjustment disorders after the source of the stress is eliminated from their lives.

Bipolar disorder includes symptoms such as enormous mood swings that may last for weeks or years.

Schizophrenia is a chronic disorder that can't be cured but can be treated.

The obsessive thoughts lead to compulsive, repetitive actions that may make life very difficult.

Anorexia is characterized by refusal to eat, extreme weight loss and sometimes binge eating.

Cyclothymia is a mood disorder that causes emotional shifts. It may affect around 1 percent of the American population.