What happens in ADHD disease?
Olivia Shea
Updated on April 23, 2026
ADHD is one of the most common neurodevelopmental disorders of childhood. It is usually first diagnosed in childhood and often lasts into adulthood. Children with ADHD may have trouble paying attention, controlling impulsive behaviors (may act without thinking about what the result will be), or be overly active.
What is the cause of ADHD?
While the exact cause of ADHD is not clear, research efforts continue. Factors that may be involved in the development of ADHD include genetics, the environment or problems with the central nervous system at key moments in development.
Is ADHD a bad disease?
Untreated ADHD can cause problems throughout life. People with ADHD tend to be impulsive and have short attention spans, which can make it harder to succeed in school, at work, in relationships, and in other aspects of life.
Is ADHD a serious mental illness?
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.
Can ADHD be cured?
ADHD can’t be prevented or cured. But spotting it early, plus having a good treatment and education plan, can help a child or adult with ADHD manage their symptoms.
Does ADHD affect sleep?
Beginning around puberty, people with ADHD are more likely to experience shorter sleep time, problems falling asleep and staying asleep, and a higher risk of developing a sleep disorder. Nightmares5 are also common in children with ADHD, especially those with insomnia.
How many people are diagnosed with ADHD?
Attention deficit hyperactive disorder, or ADHD, is a condition characterized by inattention, hyperactivity, impulsiveness, or a combination. About 60 percent of children with ADHD in the United States become adults with ADHD; that’s about 4 percent of the adult population, or 8 million adults.*.
What are the negative effects of ADHD?
Some negative effects of attention deficit hyperactivity disorder (ADHD) in kids may include the following: – poor school performance. – low grades on tests, even though they studied. – serious worries or anxiety about school.