Anxiety Disorders

Anxiety disorders are a form of mental illness that causes people to experience distressing and frequent bouts of fear and apprehension. Many will experience these feelings when periodically doing things like public speaking or a job interview. Those with anxiety disorders experience these feelings frequently, and for an extended period – six months or more.

Panic disorder
Obsessive-compulsive disorder (OCD)
Post-traumatic stress disorder (PTSD)
Social phobia (social anxiety disorder)
Generalized anxiety disorder (GAD) 

Mood Disorders

While bad moods are common, and usually pass in a short period, people suffering with mood disorders live with more sustained and severe symptoms and disruption. People living with this mental illness find that their mood impacts both mental and psychological well-being, nearly every day, and often for much of the day.

Bipolar Disorder
Depression

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Dementia

Dementia is distinguished by a disruption of consciousness, as well as changes in cognitive health (such as memory loss and motor skills).
The most common forms of dementia include:

• Alzheimer’s disease
• Health conditions (e.g., head trauma, HIV, Parkinson’s); and
• Substance-induced dementia (e.g. drugs/alcohol abuse, inhalants, or exposure to toxins).

Schizophrenia and Psychotic Disorders

 Schizophrenia is a very serious brain disorder that is marked by significant changes and disruption in both cognitive and emotional function. Schizophrenia has an effect on the most basic human aspects of life (e.g. language/communication, train of thought, perception of objects, self and others).

The most common symptoms of schizophrenia include:
Hearing voices
Hallucinations
Delusions
Social withdrawal
Incoherent speech
Abnormal reasoning 

Eating Disorders

Eating disorders are very serious, chronic conditions that can be life-threatening, if left untreated. These conditions typically take root during the adolescent years, and primarily affect females. While there are variations in the expression, symptoms and course of eating disorders, the common thread is that they all involve obsessional and sometimes distressing thoughts and behaviors, including:

Reduction of food intake
Overeating Feelings of depression or distress
Concern of weight, body shape,
poor self-image

Facts: 5 Types of Mental Illness and Disability. (2015, May 27). Retrieved December 7, 2015, from http://share.upmc.com/2015/05/5-types-of-mental-illness-and-disability/