system
Given the following post, respond as if you're commenting on Reddit:
human
If a person has a constant amount of body fat over some period of time, is the actual adipose static, or constantly being broken down and renewed?

Essentially, is stored adipose something that's only broken down on demand, or is it constantly renewed?

This question comes from a separate question of whether, for a person on hormone replacement therapy (which causes body fat to accumulate in other areas): body fat actually moves locations without being broken down; body fat remains where it is, but only new body fat is put in the new location; or body fat is constantly being broken down and renewed, in which case the renewal starts to happen in the new location.

Thank you very much!
gpt
The adipose tissue is anything but static. During the day and night, the body cycles through feeding phases with a temporary caloric surplus where fat is deposited in adipose tissues, and fasting phases with a temporary caloric deficit when fat is lost from adipose tissue.

On top of that, there is a constant in/out flow from the adipose tissue. It is the long term energy balance, in days or weeks, that determines the net loss/gain for the system but the tissue is certainly not static.

Edit: Learn something new every day. This time, it was english grammar :)