Abnormalities in feelings, thinking, and behaviors are referred to as mental disorders. Mental disorders are extremely common in Americans. In fact, based on the diagnostic criteria for mental disorders, approximately 46% of Americans have some type of mental disorder. These mental disorders include anxiety disorders, depression, behavioral disorders, thought disorders, and substance-abuse disorders.
Common Types of Mental Disorders
Anxiety disorders: In order to be diagnosed with an anxiety disorder, the person must be unable to respond appropriately to situations, they are unable to control their response, or their anxiety gets in the way of their normal day-to-day functions. Anxiety disorders manifest as fear and trepidation, as well as physical signs of uneasiness and anxiety that are characterized by an increased heart rate and perspiration. Anxiety disorders are further categorized based on their triggers. GAD (generalized anxiety disorder), PTSD (post-traumatic stress disorder), OCD (obsessive compulsive disorder), social anxiety disorder, panic disorder, and phobias are a few types of anxiety disorders. Some of these anxiety disorders are explored in greater detail below.
- Phobias: Phobia is the term used to describe an irrational and extreme fear of a situation or an object. There are many types of phobias, including the fear of spiders (arachnophobia), the fear of being up high (acrophobia), and the fear of being away from home (agoraphobia).
- Social anxiety disorder: The fear of being involved in social interactions is characteristic of social anxiety disorders. A good example of this is when a person has to give a speech.
- Generalized anxiety disorder (GAD): About 10% of the population suffers from GAD, making it a commonly diagnosed anxiety disorder. People suffering with this disorder tend to be extreme worriers about multiple aspects of their lives, such as their family, money, and their future. They may also have non-specific worries and anxieties.
- Panic disorder: Panic disorders are typified by frequent episodes of severe, unexpected, incapacitating anxiety attacks also known as panic attacks. These panic attacks may include symptoms such as an accelerated heart beat, breathlessness, nausea, and an inability to think clearly. The diagnosis of panic disorder is dependent upon the person must also be worried about experiencing a panic attack or worried about the panic attack being the symptoms of a medical condition, like a heart attack.
Behavioral disorders: Behavioral disorder is the catch-all term used to refer to the inability to display acceptable behaviors for a given situation. The one that you are probably most familiar with is ADHD (attention deficit hyperactivity disorder) because it is very commonly diagnosed. Because ADHD was initially more commonly diagnosed in boys, it was thought to be a disorder of boys; however, ADHD is also frequently diagnosed in girls. Interestingly, about half of the children that are diagnosed with ADHD in childhood continue to display symptoms in adulthood. The symptoms of ADHD include the inability to pay attention in addition to hyperactive and impulsive behaviors.
Mood disorders: Mood disorders or affective disorders are classified as the constant feeling of being sad or periods of extreme happiness, or going back and forth between feeling overly happy to overly sad. Typically a person that is diagnosed with depression experiences feelings of sadness that prohibit them from functionally normally. These feelings of sadness last longer than would be expected given the situation. Depressive disorders can be further categorized as bipolar disorders, dysthymia, or major depression.
- Major depression: In order to be diagnosed with major depression, the individual must feel depressed for most of the day and for most days over at least a two week time period. Additionally, they may experience symptoms such as changes in appetite and weight, irritability, loss of interest and motivation for their usual activities, hopelessness, and in some cases thoughts, make plans or attempts to cause harm to themselves. Some women may experience depression after having a child, in which case it is called postpartum depression. The duration of postpartum depression can vary from weeks to months.
- Dysthymia: In general, symptoms of dysthymia are milder compared to the symptoms of major depression. The symptoms of dysthymia usually continue consistently for more than one year in young adults and children, and for over two years in adults.
- Bipolar disorder: In the United States, over 1% of adults or up to 4 million people have been diagnosed with bipolar disorder. Bipolar disorder is sometimes referred to as manic depression. It is characterized by extreme changes in mood, recurring depressive episodes, and at least a single manic episode.
Psychotic disorders: People diagnosed with psychotic disorders experience a warped sense of thinking and awareness. This is typified by auditory or visual hallucinations and delusions. The person believes these delusions to be true, although there is an abundance of evidence to indicate that they are not. A diagnosis of schizophrenia is an example of a psychotic disorder.
Eating disorders: The most common eating disorders are binge eating, bulimia nervosa, and anorexia nervosa. Eating disorders are associated with severe feelings, actions, and attitudes towards food and weight.See also: