新奇事件簿 紫外线可预防癌症（在线收听）

Scientists have told us for many years that the sun can harm our health. Researchers have produced many studies that link exposure to the sun to cancer. Doctors continually warn us about the dangers of ultraviolet (UV) rays. Well, all of this might now change. Doctors and scientists may soon be telling us the opposite. New research suggests that sunshine is necessary for our bodies. Our skin absorbs the UV rays and produces vitamin D, also known as the “sunshine vitamin”.

多年以来，科学家一直告诫民众太阳光有害健康。据研究人员多方研究发现，紫外线照射与癌症有关。医生不断告诫民众紫外线危害。但一切将就此发生改变。医学专家将正话反说。新研究表明，太阳光为人体所必需。皮肤通过吸收紫外线产生维他命D，它也被人们称之为“阳光维生素”。

Dr. Edward Giovannucci of Harvard University says that vitamin D contains many anti-cancer benefits. He believes vitamin D might help prevent 30 more deaths than those caused by skin cancer. It might now be time to put the sunscreen away. Doctors may soon recommend we spend fifteen minutes a day in direct sunlight. They say this will allow our skin to produce the vitamin D we need. Researchers highlight the fact that there are fewer people with cancer in sunnier parts of the world.

哈弗大学博士爱德华·乔万努奇认为，维他命D富含抗癌成分。他认为比起皮肤癌患者，维他命也能挽救30多条患者生命。收起防晒霜。医生推荐日照时间将为15分钟。通过太阳光，皮肤可产生人体所需维他命D。研究人员强调称，癌症患者在日照充足国家较少。