New finds on speeding up metabolism - is this the end of us larger people?

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I saw on the news yesterday that scientists have found a trigger to speed up metabolism, thus making weight loss easier. It's still in it's experimental stage, but it's an exciting breakthrough, especially for those of us who struggle with weight issues! Is this the end for the larger person, will we all be clones from now on? It's surely a positive thing for health but would you choose not to take such help as you are happy for who you are?