A carbohydrate mouth rinse works by
immediately activating and influencing a number of different brain regions in
quite a profound way. And this results in immediate increases in the amount of
force production, that we see within muscle, heightening of certain sensory
processes. And it’s clearly part of a well-developed
evolutionary mechanism. That’s perhaps within the realms of rewarding us for
finding this highly prized source of energy, or promoting some kind of
behavior for competing to discover or to carry on ingesting carbohydrate.