Exposure to ultraviolet light is closely linked to skin cancer.

受紫外线照射与皮肤癌紧密相关。

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These are prime hours for exposure to skin-damaging ultraviolet (UV) radiation from the sun, even on overcast days.

这段时间是皮肤受到太阳紫外线照射伤害的主要时段，即使是阴天也是如此。

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Studies have shown that high lifetime exposure to ultraviolet light, as in those whose occupations result in regular exposure to sunlight, leads to an increased chance of developing cataracts.1.

相关研究显示，对于那些经常在户外工作的人们来说，这样长时间地暴露于紫外线直接导致了患白内障风险的增加。

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Ultraviolet-light exposure potentially causes melanoma and contributes to the development of cataracts.

WSJ: The Crucial Years for Protecting Your Eye Health

Vitamin D is a fat soluble vitamin that is mainly produced by exposure of the skin to ultraviolet light.

CNN: How much vitamin D do I need?