My son has ADHD. Because he generally loves using his body and of course has so much energy, he has always done a lot of sport. This year he has started football (what I think you call soccer), which is 2 hours of quite intense exercise on Wednesdays, Saturdays and Sundays. He also does tae kwando on Mondays, Weds, Fri. Anyway, I noticed today after his football and tae kwando that he was more co-operative and amenable than he usually is about certain things and also - which is almost unheard of - he sat and did his homework (copying some words in Arabic) unaided and uncomplaining. You should see the shouting match that usually ensues if I try to insist he does homework... I had never heard of any connection between ADHD and exercise but googled it to see. And there's quite a bit of evidence that it really does improve focus in people with ADHD! For example: http://www.additudemag.com/adhd/article/3280.html I think this is very encouraging.