New research has determined that ADHD, a developmental disorder most associated with childhood, is a problem for adults as well. A new study, the largest to date into the effects of ADHD over the long term, has found that a significant number of children with ADHD still suffer from it in adulthood. The authors of the study fear that we have trivialized ADHD and that, in reality, it is a chronic and serious medical condition that requires further study and more serious treatment and care. The repercussions of these new findings could be serious, and will hopefully lead to better care for those with ADHD. What Is ADHD? ADHD stands for attention-deficit hyperactivity disorder. It is a developmental and behavioral disorder that is most associated with childhood because it first presents at an early age. About 3 percent to 5 percent of school-aged children are diagnosed with ADHD and it is more common in boys than in girls. It seems to have a hereditary component, but the exact causes of the disorder are not completely understood. Imaging of children with ADHD and those without has shown that their brains are different. The disorder is thought to begin at some point...