I have a feeling this might be the cause of the Ballmer peak. I'm ASD, used to be way worse, grew partially out of it, but when it's bad, the Ballmer peak makes me function like a normal human with the focus of an autist. The rest of the time, it's a normal buzz.
ADHD is often comorbid with ASD and people with ADHD disproportionally use drugs and alcohol to self-medicate. I certainly focus much better on my work after a beer, but not two. Cannabis does it, too, but similar deal of "one, not two," just not as easily quantifiable.
