http://www.bbc.co.uk...ate/index.shtml
I thought I would share this article with you guys, but I do not know if it contains anything new (and its an old article).
I generally eat about 50 to 100 grams of 70% cacao dark chocolate, 1 teaspoon cacao nibs over chocolate ice cream, and a cup or two of dark hot chocolate per day.
From article:
This may be true. Unlike other stimulants which I generally notice a tolerance and decreasing effectiveness with use, it seems from my experience that the effect from chocholate actually increases with time.This type of effect is a possible scenario for the development of a physical dependency on chocolate. Current studies of psychoactive drugs show that addiction is associated with the formation and reinforcement of unusual neurotransmitter pathways in the brain. So it's just possible that, with every binge, your brain is being gradually 'rewired' in order to make you love chocolate more and more!
I always thought that theobromine was the stimulant that I was eating it for, but the article suggests that it may be any of several other chemicals.