Attention deficit hyperactivity disorder (ADHD) is a behavior problem that is characterized by hyperactivity, inattention, restlessness, and impulsivity and, until recently, was diagnosed primarily in children. It was first thought as Hyperkinetic buy essays online Disorder of Childhood in 1957 and was popularly known as hyperactivity or syndrome that is hyperactive it had been renamed ADHD in 1987. The renaming also represented a shift in focus from hyperactive behavior towards the inattention as a characteristic that is major of disorder.
In the usa the Centers for Disease Control and Prevention (CDC) estimates 7 percent of school-age (6-10) children have ADHD, with a ratio of 3 to at least one boys to girls. White children generally have higher rates of ADHD diagnosis than minority children. The definition of ADHD has broadened in recent years. Now, along with school-age children, ADHD is diagnosed in preschool children, adolescents, and adults, which contributes to the prevalence that is rising.
The most typical medical treatment for ADHD is with psychoactive medications, especially ethyl-phenidate (Ritalin) along with other stimulant medications (Cylert, Adderall, and Concerta). Treatment rates have increased enormously in the last few years; in 2004 the Department of health insurance and Human Services estimated 5 million children ages 5 to 17 were treated for ADHD in 2000-02, up from 2.6 million in 1994. The treatment and diagnosis of ADHD is significantly higher in the us than in other countries, but evidence suggests that considering that the 1990s it is often rising in other countries as well, for instance, in the United Kingdom.
What causes ADHD are not well understood, although various theories have now been offered, including dietary, genetic, psychological, and social ones. In the past 2 decades, medical researchers have reported genetic susceptibilities to ADHD and discovered variations in brain imaging results from individuals with ADHD and individuals without ADHD. Leer más
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