避免骨质疏松，30 岁之前很好锻炼身体，把钙储备足了；30 岁以后减少钙流失，尤其是更年期后的流失，说是负重锻炼。

来源: lawattaction 于 2019-04-05 07:32:51 [旧帖] [给我悄悄话] 本文已被阅读：次

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