system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5 How does the body decide which areas of the body to burn fat for fuel?

I understand that you can't choose specific zones on your body to burn fat with targeted exercises. So when fat does get burned and you begin to lose weight, which areas get burned up first/last?

Is it like LIFO (Last In First Out) or does the body evenly reduce fat from all areas at once?
gpt
Our bodies burn fat like a stack (Last In First Out) so where the fat was most recently placed, it will burn first. This is why it's often difficult for men to burn belly fat because it is one of the first places to store fat. Likewise, women first store fat in their buttocks and thighs.