本集内容

How to stay safe in the sun

如何安全地晒太阳

文字稿

Can you get sunburnt even when it's cloudy?

阴天时你也会被晒伤吗？

Yes, you can! And here's why.

会的！来看看为什么吧。

The bit of sunlight that causes damage to your skin is called ultraviolet radiation, or UV.

阳光中会对皮肤造成伤害的部分叫做 “紫外线（UV）辐射”。

It's measured on a scale from 1 to 11+, and it's usually strongest between late morning and early afternoon.

紫外线的强度被划分为从 1 到 11+ 的不同等级，通常上午晚些时候到下午早些时候之间的紫外线强度最高。

In places near the equator, UV levels can be high all year.

赤道附近地区的紫外线强度可能全年都很高。

（Source: US Environmental Protection Agency）
Almost 90% of UV can pass through scattered clouds, so a grey day can still be risky.

（信息来源：美国国家环境保护局）
近 90% 的紫外线都能穿透松散的云层，因此阴天时依然有被紫外线晒伤的风险。

We need UV for our body to make Vitamin D, which is important for the function of bones, blood cells and our immune system.

我们的身体需要紫外线来合成维生素D，这种维生素对我们维持骨骼、血细胞和免疫系统的功能至关重要。

But too much UV could cause sunburn, skin ageing, and increase our risk of skin cancer.

但过量的紫外线会引起晒伤和皮肤老化，并且增加皮肤癌的风险。

（Source: World Health Organisation）
In 2022, over 1.5 million people were diagnosed with skin cancer worldwide.

（信息来源：世界卫生组织）
2022 年，全球有超过 150 万人被确诊患有皮肤癌。

The World Health Organisation recommends taking extra precautions when UV levels are at 3 or above.

世界卫生组织建议，当紫外线指数等级在3级以上时应采取额外的防护措施。

Tips include wearing protective clothing, using at least SPF 30 sunscreen and reapplying every two hours.

建议包括穿戴防护性的服装和使用防晒指数（SPF）在 30 及以上的防晒霜，并每隔两个小时重新涂抹一次防晒霜。

Try to avoid midday sun, use shades wisely, and don't forget sunglasses – UV rays can cause eye damage too.

尽量避开正午的阳光、合理使用遮光物并且不要忘了戴太阳镜——紫外线照射也会导致视力受损。