Welcome back to the series, after a bit of a hiatus! In previous posts, we covered the fact that humans eat because we're motivated to eat, and many things can motivate us to eat. These include factors related to energy need (homeostatic factors), such as hunger, and factors that have little to do with energy need or hunger (non-homeostatic factors). These many factors are all processed in specialized brain 'modules' that ultimately converge on a central action selection system (part of the reward system); this is the part of you that decides whether or not to initiate eating behaviors.
This will be somewhat of a catch-all post in which I discuss cognitive, emotional, and habit influences on food intake. Since these factors are not my specialty, I'll keep it brief, but I don't mean to suggest they aren't important.
Food 'Cost'
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