From Natural News:
The ADHD Scam and the Mass Drugging of Schoolchildren (Transcript) Friday, May 30, 2008 by: Mike Adams

They discovered that the brains of children diagnosed with ADHD were a little behind schedule in growing. Yes, you heard that right. They said they are about three years behind the brains of other children. Everything else was normal. They said if they wait three years those children will catch up and turn out just fine.

The Drugs Don't Work
It was a team of American scientists researching what is called the "Multi-Modal Treatment Study of Children with ADHD -- MTA for short. They found that the drugs are useless over long-term. The drugs used to treat ADHD such as Ritalin and Concerta are useless. They have no benefits whatsoever after three years and even though they may show some short-term benefits depending on who is watching, and depending on their judgment of the child's behavior, the truth is there is no long-term benefit whatsoever. But here's the most important part.

They found that these drugs stunt the growth of children. "They were not growing as much as other children in terms of both their height and their weight," said the report's co-author, Prof. William Pelham from the University of Buffalo. "I think we exaggerated the beneficial impact of medication in the first study," he added in reference to a study they did a few years ago where they declared that these drugs were helping children. read