If you think a high-factor sunscree

If you think a high-factor sunscreen(防晒霜)keeps you safe from harmful rays, you may be wrong. Research in this week's Nature shows that while factor 50 reduces the number of melanomas(黑瘤)and delays their occurrence, it can't prevent them. Melanomas are the most aggressive skin cancers. You have a higher risk if you have red or blond hair, fair skin, blue or green eyes, or sunburn easily, or if a close relative has had one. Melanomas are more common if you have periodic intense exposure to the sun. Other skin cancers are increasingly likely with long-term exposure.
There is continuing debate as to how effective sunscreen is in reducing melanomas—the evidence is weaker than it is for preventing other types of skin cancer. A 2011 Australian study of 1,621 people found that people randomly selected to apply sunscreen daily had half the rate of melanomas of people who used cream as needed. A second study, comparing 1,167 people with melanomas to 1,101 who didn't have the cancer, found that using sunscreen routinely, alongside other protection such as hats, long sleeves or staying in the shade, did give some protection. This study said other forms of sun protection—not sunscreen—seemed most beneficial. The study relied on people remembering what they had done over each decade of their lives, so it's not entirely reliable. But it seems reasonable to think sunscreen gives people a false sense of security in the sun.
Many people also don't use sunscreen properly-applying insufficient amounts, failing to reapply after a couple of hours and staying in the sun too long. It is sunburn that is most worrying-recent shows five episodes of sunburn in the teenage years increases the risk of all skin cancers.
The good news is that a combination of sunscreen and covering up can reduce melanoma rates, as shown by Australian figures from their slip-slop-slap campaign. So if there is a heat wave this summer, it would be best for us, too, to slip on a shirt, slop on(抹上)sunscreen and slap on a hat.

結果 (中文) 1:

如果你认为高系数防晒霜 （防晒霜） 能让你远离有害射线，你可能错了。在本周的性质的研究表明，虽然因素 50 的黑色素瘤 （黑瘤） 可以减少和延缓他们的发生，它不能阻止他们。黑色素瘤是最激进的皮肤癌。如果你有红色或金色的头发，白皙的皮肤，蓝色或绿色的眼睛，或日晒很容易，或者近亲属有一个，你有更高的风险。黑色素瘤是更常见的如果你有定期强烈暴露在阳光下。其他皮肤癌症都与长期接触的可能性越来越大。正在争论如何有效的防晒霜在减少黑素瘤 — — 证据是较弱的而不是防止其他类型的皮肤癌。2011 年的 1,621 人的澳大利亚研究发现人随机抽取，每天涂抹防晒霜的使用作为冰淇淋的人黑色素瘤的半速率需要。另一项研究，比较 1,167 到 1,101 的黑色素瘤的人没得上癌症，发现使用防晒霜定期进行的旁边其他保护如帽子、 长袖或呆在阴凉处，并给一些保护。这项研究说，其他形式的太阳保护 — — 不防晒霜 — — 似乎最有利。这项研究依赖于人们记住他们的所作所为在每个十年的他们的生活，所以它不是完全可靠。但似乎合理地认为防晒霜在阳光下给人虚假的安全感。很多人也不使用防晒霜正确应用的不足数额，未能重新应用后几个小时，住在太阳底下太久。它是晒伤，是最令人担忧的新显示五个情节的十几岁的晒伤会增加所有皮肤患癌症的风险。好消息是防晒霜和掩盖的组合可以减少黑素瘤率，从他们溜坡巴掌竞选澳大利亚数字所示。所以如果今年夏天热浪，它会对我们来说最好，太，滑上一件衬衫，涂上防晒霜 （抹上），然后贴上一顶帽子。

結果 (中文) 3:

如果你认为高系数的防晒霜（防晒霜）使你免受有害光线，你可能是错的。在本周的自然杂志上的研究表明，在因子50降低黑色素瘤的数目（黑瘤）和延迟其发生，也不能阻止他们。黑色素瘤是最具侵袭性的皮肤癌。如果你有红色或金色的头发，白皙的皮肤，蓝色或绿色的眼睛，或容易晒伤，或如果一个亲密的亲戚有一个更高的风险。如果你有周期性的强烈的暴露在阳光下，黑色素瘤是比较常见的。其他皮肤癌的可能性越来越大，长期暴露。有持续的辩论如何有效防晒是减少黑色素瘤的证据是弱于它是预防其他类型的皮肤癌。2011澳大利亚1621人的研究发现，随机选择防晒霜每天的人谁使用奶油为需要的人黑色素瘤率的一半。另一项研究中，比较1167人黑色素瘤1101谁没有癌症，发现使用防晒霜，经常与其他保护如帽子、长袖或呆在阴凉处，并提供一些保护。这项研究说，其他形式的防晒霜不防晒似乎最有益的。这项研究依赖于人们记住他们在他们的生活中的每一个十年所做的，所以它不完全可靠。但它似乎是合理的认为防晒给人一种虚假的安全感在阳光下。许多人也不使用防晒霜的正确使用量不足，未能申请后几个小时呆在太阳底下太久。这是晒伤，是最令人担心的最近显示在青少年时期的五集的晒伤增加了所有皮肤癌的风险。好消息是，结合了防晒霜和覆盖可以降低黑色素瘤的发病率，如从滑坡拍击运动澳大利亚数据。所以，如果有一个热浪今年夏天，这将是对我们最好的，也要穿上衬衫，坡上（抹上）上一顶帽子，防晒霜和巴掌。