Old and thin
The health hazards of obesity are well known. Therefore, there is a saying that "the rich can hardly buy the old to lose weight". But nothing is absolute. As far as weight loss is concerned, it can be divided into two situations: one is physical weight loss, which has been the case for many years, and there is no physiological abnormality, which is related to genetics; the other is pathological weight loss , Caused by some obvious or hidden disease.
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