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  3. Too much time in the sun may be especially harmful for baby, according to a review of new insights by the American Academy of Pe

Too much time in the sun may be especially harmful for baby, according to a review of new insights by the American Academy of Pe

admin2016-10-21  35
问题     Too much time in the sun may be especially harmful for baby, according to a review of new insights by the American Academy of Pediatrics into the importance of protecting young skin. Baby and toddler skin differs considerably from the skin of older children and adults, so it’s important to protect infants from early on. The notion that babies don’t get sunburned is false: research has shown evidence of UV-induced pigmentation, starting with baby’s first exposure to summer sun. And those early changes may contribute to the development of skin cancer later on. As a result, pediatricians need to emphasize the importance of staying safe in the sun to new parents. Parents need to recalibrate their thinking and be vigorous with sun protection from early on.
    What we know about sun protection is all based on studies in adults. But there are physiological differences between kids and adults in the barrier function of skin, with fluctuating lipid-to-protein ratios and various sizes of cells. Research has shown that the skin on the backs — or outside — of babies’ arms changes in pigmentation when they’re exposed to UV light. Even in the first summer of life, there is a measurable difference.
    The AAP’s current recommendation is to apply sunscreen to babies six months and older — parents should use sunscreens with gentler, more moisturizing ingredients for babies — but researchers say that lower age limit is most likely flexible. There’s probably no harm in putting sunscreen on a younger child, after the first few weeks. Sunscreen is only one defense against sun exposure for babies and children — as well as adults. You should also practice sun avoidance, especially for kids under 6 months old, which means staying out of the sun during the hottest parts of the day — 10 a.m. to 4 p.m. Remember also to wear protective clothing. If you are using sunscreen, be sure to use enough and to reapply regularly.
    Selecting appropriate sunscreens is another challenge. In general, physical sunscreens that rely on titanium dioxide or zinc oxide to block the sun’s rays, and sit on the surface of the skin, are preferable to chemical sunscreens, which contain chemicals that may be absorbed by the skin. It can be hard to find affordable physical sunscreens, though — often marketed as "natural" sunscreens — that don’t contain preservatives such as parabens, which some experts worry may disrupt the endocrine system. The fact is that it’s hard to get away from additives.
    So are parabens a problem? They can be a sensitizer, but they’re not as bad as many think.
According to the passage, most people’s view on skin protection against the sun is that______.
选项 A、babies don’t get sunburned
B、UV light can change pigmentation
C、it’s important to protect infants’ skin from early on
D、parents should apply sunscreen to babies six months and older
答案A
解析 细节题。题意要求找出大多数人的观点是什么，从第一段“The notion that babiesdon’t get sunburned is false”可以看出大多数人都觉得婴儿应该多晒太阳，太阳中的紫外线不会对婴儿皮肤造成伤害，而这恰恰与研究者所得到的结果相反，故A为正确答案。曰在第二段，为研究者的研究结果。C在第一段，是从研究者的结果中所得到的结论。D在第三段开头，是从研究结论中得到的建议。
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