Found this at
Are Our Kids the Sickest Generation? - Page 1 - MSN Health & Fitness - ADHD , just some interesting things about the disorder.
"ADHD: Up by a whopping 400 percent
Increased understanding of mental disorders in children has also led to a rise in the pediatric diagnosis of ADHD, by as much as 400 percent or higher over the last 25 years, according to some estimates. It is the most commonly diagnosed behavioral disorder in childhood, affecting between 3 percent and 5 percent of school-age children in the United States. Worldwide use of prescriptions to treat ADHD in children has increased by 274 percent, with the United States prescribing more medication for ADHD than any other country.
“More attention was paid to mental health issues in children during the '90s when people realized that a lot of conditions that related to the brain start in childhood,” says Dr. Ben Vitiello, a psychiatrist at the National Institute of Mental Health and a leading expert in child and adolescent ADHD.
Vitiello says that some of the increase could be due to partial diagnosis of ADHD in children. He discounts the theory that environmental toxins are the cause of the majority of ADHD, though new research has been done examining whether food additives and coloring contribute to ADHD. “The impact of these environmental toxins is very small, if present at all,” he says.
Sometimes children with bipolar disorder are misdiagnosed to have ADHD. Children with sleep disorders can present with ADHD symptoms, so sometimes they are diagnosed with the mood disorder as well."
There was some other stuff about other diseases too, kind of interesting.