What IS ADHD
Attention-deficit/hyperactivity disorder (previously known as attention deficit disorder or ADD) is a neurobehavioral disorder characterized by core symptoms of inattentiveness, distractibility, hyperactivity, and impulsivity. ADHD is thought to be the most common childhood mental health disorder, with estimates of its prevalence in children ranging from 5 to 11 percent. ADHD in adulthood is thought to be less common, with approximately 2 to 5 percent of adults diagnosed.
ADHD symptoms can interfere with work, school, household tasks, and relationships, and managing the disorder can be a challenge for both children and adults. Fortunately, there are treatments that have been shown to be effective, and anyone affected by ADHD can learn coping skills to work around struggles and harness their talents—as many successful individuals with ADHD have already done.
Some children and adults with ADHD find it difficult to concentrate on tasks at school or work and may daydream frequently. Children with ADHD may become disruptive, defiant, or have trouble getting along with parents, peers, or teachers. Children who struggle with hyperactivity and impulsivity, in particular, often have behavioral challenges that can be difficult for adults to manage.
Adults, on the other hand, maybe more likely to report feeling restless or fidgety; if they struggle with impulsivity, they may make rash decisions that adversely affect their life. For both children and adults, executive functioning (planning, emotional regulation, and decision-making) is often affected as well. Many children and adults display either hyperactive or inattentive symptoms of ADHD, but it’s also possible for both sets of symptoms to exist together, in what is typically called combined type ADHD.
Most psychiatrists and psychologists agree that ADHD is real. It runs in families (suggesting genetic roots) and neurological evidence has found it to be associated with alterations in brain growth and development. ADHD is also clearly linked to academic, work, and relationship problems—and responds to treatment—suggesting that it has clinical validity. But whether the disorder is overdiagnosed and overtreated—or whether it reflects a set of evolved traits that have become less adaptive in today’s world—is widely debated.
Like many other mental health disorders, the causes of ADHD remain under investigation. Genes are theorized to play a key role, as are environmental influences such as exposure to toxins in the womb and early traumatic experiences. Since ADHD is a behavioral disorder, expectations of appropriate behavior, particularly in children, likely influence diagnoses in some cases.
Experts have debated whether treatment for ADHD should be primarily behavioral (therapy, attention training, increased play, greater structure) or pharmacological. Several large studies have concluded that a combination of both may be most effective.
Significant evidence suggests that ADHD has both genetic and environmental underpinnings. Twin studies, for instance, have found that identical twins are significantly more likely than fraternal twins to both be diagnosed with ADHD or display ADHD-like behaviors. There is no single gene that is considered “responsible” for ADHD; rather, like many psychiatric conditions, it is thought to be linked to many genetic variants, only some of which have been uncovered.
Some experts argue that what we call ADHD is actually a “disease of civilization”—that is, a disorder that arises because of a mismatch between humans’ evolutionary roots and our modern environment. High energy levels, for instance, may have been adaptive for a hunter-gatherer but are problematic in a modern classroom. Some prominent child development experts have noted that the recent rise in ADHD diagnoses has coincided with an increased focus (particularly in American schools) on rigorous standardized testing and reduced playtime—suggesting that at least some children diagnosed with ADHD have been placed in environments that worsen the evolutionary mismatch.
Though ADHD can and often does cause academic challenges, it is not considered a specific learning disability (such as dyslexia or dysgraphia). However, many children with ADHD—anywhere from 30 to 50 percent, according to some estimates—have a comorbid learning disability. The conditions can also display similar external symptoms, particularly in children.
While fidgetiness is certainly an aspect of ADHD, the condition is more complex than physical restlessness. If, in addition to constant fidgetiness, you experience strong feelings of distractibility that persist in multiple settings, often behave impulsively, talk excessively, struggle to follow through on tasks or manage your time, and/or make careless mistakes on important projects, you may show symptoms of ADHD. Requesting an evaluation from a healthcare provider is the first step to receiving a diagnosis and initiating treatment. For more about symptoms and diagnosis, see ADHD Symptoms and Diagnosis.
(Content Courtesy: Psychologytoday)
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