Its real thats the thing. Just because I called it "fat cell memory" doesn't mean the concept is made up.
The term itself may not be scientific, but the underlying idea is supported by research. When people lose a significant amount of weight, fat cells mainly shrink rather than disapear. In adults, fat cell number tends to remain relatively stable, and previous obesity may leave long-lasting biological and even epigenetic changes that can influence future weight regain.
I'm not saying that regaining fat is inevitable, but it's not accurate to dismiss the concept entirely as a myth. There is evidence that adipose tissue retains certain characteristics after obesity, even after substantial weight loss.
As far as I know, there is currently no reliable way to significantly reduce fat cell number other than procedures such as liposuction. Weight loss primarily reduces the size of fat cells, not their number
Interesting paper to this subject, you guys can search it up.
Adipose tissue retains an epigenetic memory of obesity after weight loss" (Nature, 2024).