Rice won't make you love a subject you hate, but it can help give you a better attitude about it and give you the energy to at least endure the class you're sitting in.
Carbohydrates -- which rice has in abundance -- have been shown to increase the level of serotonin in the human body [source: WebMD]. Serotonin, in turn, lifts a person's spirits. In addition, whole-grain brown rice also provides plenty of fiber to ensure a more substantive and steady fuel burn. Brown rice is a smart lunch choice when a long afternoon of classes is on the schedule.