Answer the following questions. 
Definitions:
Hunger-Suppressing Hormone
A hormone like ghrelin that regulates feelings of hunger and satiety, helping to control appetite.
Ghrelin
A hormone produced in the stomach that stimulates appetite, promoting the feeling of hunger.
Arousal Theory
A theory in psychology that suggests people are motivated to maintain an optimal level of arousal, which varies by individual, to perform tasks optimally.
Aversive Effects
Unpleasant outcomes or reactions that are intended to discourage a behavior or action.
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