system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: How do our bodies decide where to burn fat from after exercise?
gpt
They don't really decide.  The fat on the surface of each deposit is metabolized with fairly equal preference.  This means that deposits with a higher amount of surface area will lose the most mass.

Edit - In other words, it comes off in layers like peeling an onion.  The top layer is burned   wherever it is located on your body.