Not surprising. After all, how is ADD and hyperactivity treated? Just give the patient EVEN MORE STIMULANT.
Ignorant much?
True clinical cases of ADD/ADHD, that cannot be effectively managed with other treatment methods, can be treated "with a stimulant" and actually SLOW the individual down.
Care to know how this works? Amphetamines (and perhaps the non-stimulant prescriptions that have come out in the past decade have the same mechanism) amp up the production of certain neurotransmitters, which, in short, can effectively manage the classical neurotransmitter imbalances that result in ADD/ADHD.
It's kind of crazy how throwing more fuel at the fire can actually put the fire out, but it can work (of course, it's also overused and a lot of ADD/ADHD, or the imbalances at play, are a result of a variety of issues that the stimulant route won't correct).
Another strange fact:
psilocybin (shrooms) is also another hallucinogenic substance that can treat/alleviate a variety of mental disorders/NT imbalances. Quite important, though, is that the dosing of a patient is fairly controlled, and one helps manage the "trip" so that it's positive and uplifting (and one of "discovery"). A few studies showed that once or twice a year, a moderate dose of psilocybin could help individuals with clinical depression and/or anxiety (can't recall everything that was discussed in the research).
A lot of these chemicals have been selectively used throughout history for good reason. Granted, they didn't understand they were getting those mental boosts, but it surely helped with keeping a peaceful civilization, partly because it kept their spirits up and faith strong (mystical experiences with an ignorance of mysticism tends to boost faith).
A lot of mind-altering substances hit the brain exactly where we need it (the "spirituality/faith" center), and half the reason so many people are fucked up today is because these very helpful chemicals (in controlled/group settings, moderate dosages, infrequent use) have been completely stripped away from us. And most are reluctant to seek out drugs when the law is against them on this matter (and employers).