VD近年是热门,紫外线指数,暴露区域与照射时间 与维生素D合成量关系不简单,与人种基因,皮肤类型等也有关。
回答: 我现在几乎天天日光浴,觉得很舒服。晒的时间长短取决于自己是否晒热了。其实夏天的shade底下也有紫外线。呆户外比室内好。
由 nowayitsover
于 2020-09-21 13:53:22
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