Wednesday, July 15, 2009

Bipolar Disorder

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Bipolar disorder, also known as manic depression, manic depressive disorder or bipolar affective disorder, is a psychiatric diagnosis that describes a category of mood disorders defined by the presence of one or more episodes of abnormally elevated mood clinically referred to as mania or, if milder, hypomania. Individuals who experience manic episodes also commonly experience depressive episodes or symptoms, or mixed episodes in which features of both mania and depression are present at the same time. These episodes are usually separated by periods of "normal" mood, but in some individuals, depression and mania may rapidly alternate, known as rapid cycling. Extreme manic episodes can sometimes lead to psychotic symptoms such as delusions and hallucinations. The disorder has been subdivided into bipolar I, bipolar II, cyclothymia, and other types, based on the nature and severity of mood episodes experienced; the range is often described as the bipolar spectrum.

Data from the United States on lifetime prevalence varies, but indicates a rate of around 1 percent for Bipolar I, 0.5 to 1 percent for Bipolar II or cyclothymia, and between 2 and 5 percent for subthreshold cases meeting some, but not all, criteria. The onset of full symptoms generally occurs in late adolescence or young adulthood. Diagnosis is based on the person's self-reported experiences, as well as observed behavior. Episodes of abnormality are associated with distress and disruption, and an elevated risk of suicide, especially during depressive episodes. In some cases it can be a devastating long-lasting disorder; in others it has also been associated with creativity, goal striving and positive achievements.

Genetic factors contribute substantially to the likelihood of developing bipolar disorder, and environmental factors are also implicated. Bipolar disorder is often treated with mood stabilizer medications, and sometimes other psychiatric drugs. Psychotherapy also has a role, often when there has been some recovery of stability. In serious cases in which there is a risk of harm to oneself or others involuntary commitment may be used; these cases generally involve severe manic episodes with dangerous behavior or depressive episodes with suicidal ideation. There are widespread problems with social stigma, stereotypes and prejudice against individuals with a diagnosis of bipolar disorder. People with bipolar disorder exhibiting psychotic symptoms can sometimes be misdiagnosed as suffering from schizophrenia, another serious mental illness.

The current term "bipolar disorder" is of fairly recent origin and refers to the cycling between high and low episodes (poles). A relationship between mania and melancholia had long been observed, although the basis of the current conceptualisation can be traced back to French psychiatrists in the 1850s. The term "manic-depressive illness" or psychosis was coined by German psychiatrist Emil Kraepelin in the late nineteenth century, originally referring to all kinds of mood disorder. German psychiatrist Karl Leonhard split the classification again in 1957, employing the terms unipolar disorder (major depressive disorder) and bipolar disorder.

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Attention-Heficit/Hyperactivity Disorder (ADHD or AD/HD)

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Attention-deficit/hyperactivity disorder (ADHD or AD/HD) is a neurobehavioral developmental disorder. ADHD is defined as a “persistent pattern of inattention or hyperactivity—impulsivity that is more frequently displayed and more severe than is typically observed in individuals at a comparable level of development.” It is the most commonly diagnosed psychiatric disorder in children. It affects about 3 to 5% of children globally with symptoms starting before seven years of age.ADHD is generally a chronic disorder with 30 to 50% of those individuals diagnosed in childhood continuing to have symptoms into adulthood. As they mature, adolescents and adults with ADHD are likely to develop coping mechanisms to compensate for their impairment.

Though previously regarded as a childhood diagnosis, ADHD can continue throughout adulthood. Four percent of American adults are estimated to live with ADHD. ADHD is diagnosed twice as frequently in boys as in girls, though studies suggest this discrepancy may be due to subjective bias. ADHD management usually involves some combination of medications, behavior modifications, lifestyle changes, or counseling.

ADHD and its diagnosis and treatment have been considered controversial since the 1970s. The controversies have involved clinicians, teachers, policymakers, parents and the media, with opinions regarding ADHD that range from not believing it exists at all to believing there are genetic and physiological bases for the condition and also include disagreement about the use of stimulant medications in treatment. Most healthcare providers accept that ADHD is a genuine disorder; debate in the scientific community centers mainly around how it is diagnosed and treated.

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Computer Addiction

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Computer addiction, or more broadly computer overuse, is excessive or compulsive use of computers that interferes with daily life. The Diagnostic and Statistical Manual of Mental Disorders (the DSM) criteria for substance dependency have been used to argue that some individuals suffer from computer addiction. However, the existence of "computer addiction" is currently debated.

History

There are examples of computer overuse dating back to the earliest computer games. Many NetNews users were considered obsessive in the 1980s.[citation needed] With the widespread use of computers in the 21st century, it may be difficult to distinguish users who are "highly engaged" in their computer use from those who might be considered "addicted".

Press reports have noted that some Finnish Defence Forces conscripts were not mature enough to meet the demands of military life, and were required to interrupt or postpone military service for a year. One reported source of the lack of needed social skills is overuse of computer games or the Internet. Forbes termed this overuse "Web fixations", and stated that they were responsible for 12 such interruptions or deferrals over the 5 years from 2000-2005.

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Alcoholism

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Alcoholism is a term with multiple and sometimes conflicting definitions. In common and historic usage, alcoholism refers to any condition that results in the continued consumption of alcoholic beverages, despite health problems and negative social consequences. Modern medical definitions[1] describe alcoholism as a disease and addiction which results in a persistent use of alcohol despite negative consequences. In the 19th and early 20th centuries, alcoholism, also referred to as dipsomania described a preoccupation with, or compulsion toward the consumption of, alcohol and/or an impaired ability to recognize the negative effects of excessive alcohol consumption.

Although not all of these definitions specify current and on-going use of alcohol as a qualifier for alcoholism, some do, as well as remarking on the long-term effects of consistent, heavy alcohol use, including dependence and symptoms of withdrawal.

While the ingestion of alcohol is, by definition, necessary to develop alcoholism, the use of alcohol does not predict the development of alcoholism. It is estimated that 9% of the general population is predisposed to alcoholism based on genetic factors.[citation needed] The quantity, frequency and regularity of alcohol consumption required to develop alcoholism varies greatly from person to person. In addition, although the biological mechanisms underpinning alcoholism are uncertain, some risk factors, including social environment, stress,[3] emotional health, genetic predisposition, age, and gender have been identified. For example, those who consume alcohol at an early age, by age 16 or younger, are at a higher risk of alcohol dependence or abuse. Also, studies indicate that the proportion of men with alcohol dependence are higher than that of the proportion of women, 7% and 2.5% respectively, although women are more vulnerable to long-term consequences of alcoholism. Around 90% of adults in United States consume alcohol and more than 700,000 of them are treated daily for alcoholism. Professor David Zaridze, who led the international research team, calculated that alcohol had killed three million Russians since 1987.

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Addiction

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The term "addiction" is used in many contexts to describe an obsession, compulsion, or excessive psychological dependence, such as: drug addiction (e.g. alcoholism), video game addiction, crime, money, work addiction, compulsive overeating, problem gambling, computer addiction, nicotine addiction, pornography addiction, etc.

In medical terminology, an addiction is a state in which the body depends on a substance for normal functioning and may occur along with physical dependence, as in drug addiction. When the drug or substance on which someone is dependent is suddenly removed, it will cause withdrawal, a characteristic set of signs and symptoms. Addiction is generally associated with increased drug tolerance. In physiological terms, addiction is not necessarily associated with substance abuse since this form of addiction can result from using medication as prescribed by a doctor. Physical dependence is different from psychological dependence (addiction). The latter is often characterized by a compulsive need for a drug for psychological reasons, while the former is characterized by need for the drug due to tolerance and the need to prevent withdrawal symptoms on discontinuing the use of a drug. Physical dependence however, commonly occurs with both addiction and therapeutic use of drugs.

However, common usage of the term addiction has spread to include psychological dependence. In this context, the term is used in drug addiction and substance abuse problems, but also refers to behaviors that are not generally recognized by the medical community as problems of addiction, such as compulsive overeating.

The term addiction is also sometimes applied to compulsions that are not substance-related, such as problem gambling and computer addiction. In these kinds of common usages, the term addiction is used to describe a recurring compulsion by an individual to engage in some specific activity, despite harmful consequences, as deemed by the user himself to his or her individual health, mental state or social life.



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