What is the main cause of ADHD?
ADHD tends to run in families and, in most cases, it’s thought the genes you inherit from your parents are a significant factor in developing the condition. Research shows that parents and siblings of someone with ADHD are more likely to have ADHD themselves.
Is ADHD genetic or environmental?
ADHD is highly heritable, with twin studies in children suggesting 70–90% of the variance between individuals is due to genetic factors, and 10–30% due to unique environmental factors (specific to each twin; Jepsen & Michel, 2006).
What evidence exists for a genetic cause of ADHD?
New research provides the first direct evidence that attention-deficit/hyperactivity disorder (ADHD) is a genetic condition. Scientists at Cardiff University found that children with ADHD were more likely to have small segments of their DNA duplicated or missing than other children.
What type of disorder is ADHD?
What is ADHD? ADHD, also called attention-deficit disorder, is a behavior disorder, usually first diagnosed in childhood, that is characterized by inattention, impulsivity, and, in some cases, hyperactivity. These symptoms usually occur together; however, one may occur without the other(s).
Who is at most risk for ADHD?
Risk factors for ADHD may include:
- Blood relatives, such as a parent or sibling, with ADHD or another mental health disorder.
- Exposure to environmental toxins — such as lead, found mainly in paint and pipes in older buildings.
- Maternal drug use, alcohol use or smoking during pregnancy.
- Premature birth.
Can ADHD go away?
Many children (perhaps as many as half) will outgrow their symptoms but others do not, so ADHD can affect a person into adulthood.
Is ADHD serious?
Attention-deficit/hyperactivity disorder (ADHD) is a severe mental illness, associated with major impairment and a high comorbidity rate. Particularly undiagnosed ADHD in adulthood has serious consequences. Thus, a valid diagnosis is important.