一项研究或许可以给出解释：这些新的小生命接触日光的多少决定了身体中控制生理时钟的基因的特性。
One study may help explain why: the amount of daylight to which newborn mice are exposed sets the behavior of key biological clock genes for life.
世界卫生组织鼓励各国制定和实施法律，以便更好地控制日光浴浴床的使用，例如禁止所有无监督的日光浴浴床营业。
WHO encourages countries to formulate and reinforce laws in order to better control the use of sunbeds such as the ban of all unsupervised sunbeds operations.
并非所有黑色素瘤患者的病情都能被控制，但减少在强日光或其他紫外线来源(如晒黑床)下暴露皮肤的几率将明显降低获得此致命疾病的可能性。
Not all melanomas can be prevented, but limiting exposure to strong sunlight and other sources of UV light like tanning beds can significantly reduce the risk of getting this very deadly cancer.
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