ADHD- braind isorder
is attention deficit hyperactivity
disorder. It is a brain disorder. Some symptoms of inattention
or hyperactivity-impulsivity begin by age 6, though full-fledged symptoms may not be clear till later. Symptoms may get better but persist in adulthood.
There is no test to diagnose it - if there are enough symptoms that affect function, the diagnosis is made. It is best treated with medicines.