>>Most cases of diagnosed ADHD can be vastly improved or completely cured by changes to the environment <<

Completely cured is bunkem Jack.

They can be taught strategies to help them through their difficult times. I have a daughter who is 18 and has been diagnosed with ADHD. She has problems with her short term memory, socialising and in times of stress or excitement, can get so hyperactive. However she has learned strategies to help her in such scenarios. She will never be completely cured, but she will need to live with it, the best way she can. She has a sensible diet and has always had one. She knows that certain products make her go bonkers, so she avoids them as best as possible. We stopped with agreement from her, taking Ritalin. That is such a terrible drug. however in doing that she had to learn strategies.
We are very pleased with her, as she has managed to get herself into University (only people who understand ADHD will know how difficult that is). She is also spending a year in Holland as an Au Pair and is doing very well.

I suppose you are going to tell me that Autistic children can be cured now?