system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: What's happening in my brain when I "get tired" of a flavor/snack?

Like how I used to love sour cream and onions chips and would eat a bag once a week: now I can't stand them!
gpt
Your reward center associated with that particular sensation has all its NT receptor occupied or shut off this decrease neuron activity or stops it altogether.  It's a form of habituation.  Similar to how drug addicts always trying to reach that same high but impossible.  Good for you is that it will eventually go away given time.