7.6 热门：'完美香蕉'应该几分熟?

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Age play to escape worries

美24岁女子痴迷扮婴儿

Heidi, 24, is a sales associate from Oregon. She is also a "little" part of a subculture of people who enjoy dressing up as adult babies for several hours a day. For Heidi, age play isn't sexual, and she uses dressing up as a 1- to 3-year-old to escape her worries in the real world. 

24岁的海蒂是美国俄勒冈州一名销售助理，也是"婴儿扮演"亚文化群中的一份子，爱好这种文化的成人每天喜欢花几个小时扮演婴儿。海蒂扮演婴儿无关乎性，她把自己打扮成1-3岁的宝宝是为了逃避现实生活中的烦恼。

She'll usually spend an hour or so a day doing baby play, when she'll wear her hair in pigtails and dress up in pink, childlike outfits, wear a nappy (which she doesn't use in place of the toilet), play with toys, and babble and move around as a child would. She's been open with her friends and boyfriend about her lifestyle choice. Her boyfriend is understanding.

她通常每天花上一个小时左右扮演婴儿，在这期间她扎着小辫，身穿粉色的稚嫩的婴儿连体服，穿着尿布(实际上不用)，玩玩具，呀呀学语，像孩子一样踱步。她在朋友和男友面前也不隐瞒自己选择的生活方式，而男友对她的爱好表示理解。

How ripe should bananas be?

'完美香蕉'应该几分熟?

An online debate about the perfect level of banana ripeness proves there are a lot of different opinions about the best time to eat the yellow tropical fruit. A new snap that has gone viral on Instagram shared by the account fitness meals shows a bunch of bananas all at different levels of ripeness. 

近日一场关于完美香蕉成熟度的网络辩论证明，人们对香蕉这种热带水果的最佳食用时间存在很大争议。Instagram账号"健身餐"分享的一张照片在该平台上走红，照片中是一把成熟程度各异的香蕉。

They are all labeled from numbers one through 15, with one being the most under-ripe, to 15 being the most over-ripe. The majority of banana fans said they would pick numbers 8 through 10 from the bunch. These fruit had no green under-ripe parts, with number 10 having a few brown speckles on the skin also. 

它们被标记上1-15之间的数字，其中1是最生涩的，15则过度成熟。大多数香蕉爱好者称，他们会挑选8-10号，这几根香蕉没有绿色未熟部分，而10号香蕉外皮上有些许褐色斑点。

Some opted for a more under-ripe 6 or 7 banana, while some said they would pick a very brown and speckled 11. Harley Street nutritionist Rhiannon Lambert reveals that bananas are an excellent source of potassium and other nutrients no matter how ripe they are. However she says for the average person, a more ripe banana may be easier to digest.

有些人选择了不太熟的6号或7号香蕉，还有人称，他们会挑选深褐色、布满斑点的11号香蕉。哈利街营养学家里安诺•兰伯特指出，无论香蕉的成熟度如何，它们都富含钾元素以及其他营养物质。然而她表示，对普通人来说，较熟的香蕉可能更容易消化。

Lack of Vitamin D increases miscarriage risk

缺乏维生素D或致流产

Women not receiving enough vitamin D take longer to get pregnant and may even increase their risk of having a miscarriage, a study has found. Researchers analyzed levels of the essential nutrient in the blood, before pregnancy and eight weeks after, of 1,200 women who had experienced a previous pregnancy loss and were hoping to conceive again. 

一项研究发现，没有摄入足够维生素D的女性需要更长的时间才能怀孕，甚至可能面临更高的流产风险。研究人员比对分析了1200名女性孕前和孕后8周血液中必需营养素的水平，这些女性此前都曾经历过妊娠失败，并希望能重新受孕。

Those whose vitamin D levels were in line with recommended levels prior to conception were 15% more likely to have a live birth, and risk of miscarriage decreased as levels of the vitamin rose. The findings add to earlier studies which had suggested higher levels of vitamin D were beneficial in women undergoing in vitro fertilization. 

那些在孕前体内维生素D水平与推荐水平一致的女性活产的可能性要高出15%，流产风险会随着维生素D水平的提高而降低。这一发现进一步证实了早前的研究，即高水平的维生素D对人工授精的妇女有益。

In fact, vitamin D is also essential for the human body to absorb calcium and other minerals from the food and drinks we consume. Deficiencies can cause bone weakness and deformities, particularly in children who are growing rapidly where it can lead to rickets.

实际上，维生素D也是人体从食物和饮料中吸收钙和其他矿物质的必需物质。维生素D摄入不足会导致骨质疏松或骨头变形，尤其对于快速长身体的孩子而言，缺乏维生素D可能导致佝偻病。

Blue light isn't harmful

正名:蓝光对眼睛无害

Many of us spend our days staring into bright screens. Light can cause damage to eyes under certain conditions, and some studies indicate that the most harmful part of the visible spectrum is blue light, which electronic devices emit to stay visible under bright conditions. 

我们很多人整天都盯着明亮的屏幕。在某些情况下，光会对眼睛造成破坏，一些研究指出，可见光中危害最大的部分就是蓝光，而电子设备恰会辐射蓝光从而确保在明亮的环境下能被看到。

Because of that, eyewear companies and screen-protector manufacturers have started to market and sell devices designed to protect vision by blocking blue light. "There's no evidence that blue light may be causing any irreversible damage," Dr Rahul Khurana, clinical spokesman for the American Academy of Ophthalmologists. 
美国眼科学会临床发言人拉胡尔•库拉纳博士表示："目前尚无证据表明蓝光可能会对眼睛造成任何不可逆转的损伤。

But if blue light isn't harmful, then why are we constantly rubbing our eyes when we're looking at our screens? The answer is eyestrain: More than 60% of people experience problems associated with digital eyestrain. Our eyes are so strained because most of us blink less when we stare at our digital devices.
"但如果蓝光是无害的，为什么我们在看屏幕的时候会不停揉眼睛呢？答案是眼睛疲劳：超过60%的人存在因使用电子产品导致的眼疲劳问题。我们的眼睛之所以会如此疲惫，是因为大多数人在盯着电子产品时，眨眼的次数会减少。

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