eli5:Why do people struggle to keep weight off after losing it?

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I love watching weightloss challenges, so I watch people go through these crazy transformations but often times after I hear that the participants will gain a significant portion, if not all, of the weight back. Why is that? Is it diet? Biology?

In: Biology

7 Answers

Anonymous 0 Comments

I read somewhere that the fat cells created when you gain wait never go away they only shrink. I dont know shit about it though, just something i read on the internet.

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