> They're not hopped up on chocolate.  They're hopped up on sugar.

Sugar has been shown to increase the uptake of ingested substances.  It's the reason why having wheat and sugar (in, say, a donut) is much worse than having either alone.  So in a certain sense you're correct.  But just like in the ingredients of a donut, it takes two to tango, it's not just -- or even mainly -- the sugar in chocolate that's the problem.  Stuff has psychoactive properties that just ain't natural.

Jim