[Almaviva]

> people demonstrably have higher vigilance for repetitive attention-heavy tasks when they've been injected with sugar

That's not at all the same as saying that more difficult tasks actually consume more sugar, any more than programming must consume caffeine because coffee makes some people more focused on it.

[goodside]

Meanwhile, in reality, where evidence extends further than whatever I happen to mention, it does deplete glucose.

[Almaviva]

I don't know why you need to be rude and condescending. I don't know much about these things, but cursory research shows that these are at least good questions: http://www.epjournal.net/filestore/ep08244259.pdf

"It does deplete glucose" seems to be in question, doesn't it?