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  3. Many new mothers suffer from extreme tiredness even four months after giving

Many new mothers suffer from extreme tiredness even four months after giving

游客2023-08-21  48
问题     Many new mothers suffer from extreme tiredness even four months after giving birth, prompting experts to warn they should not hurry back to work. An Australian study found half of new mothers were still "excessively sleepy" 18 weeks into motherhood. The findings have "significant implications" for decisions-makers about the length of parental leave, the researchers said.
    Dr. Ashleigh Filtness, of Queensland University of Technology, studied the sleep patterns and tiredness in women after giving birth. She found that despite new mothers recording stable night sleep times at 18 weeks, they continued to report being excessively tired. The study, published in the journal PLOS ONE, followed 33 healthy new Australian mums who recorded their sleep patterns after giving birth in 15-minute intervals during weeks six, 12 and 18.
    Dr. Filtness said, " Sleep disruption strongly influences daytime function, with sleepiness recognized as a risk-factor for people performing critical and dangerous tasks. Our findings bring into question whether four months’ parental leave is sufficient to ensure daytime sleepiness has diminished to a manageable level before returning to work. "
    And while new mothers were still waking on average twice a night to attend to their babies at six, 12 and 18 weeks—their total sleep time was about seven hours and 20 minutes. Australian new mothers actually slept more than the average American ones, who got six hours and 53 minutes.
    Dr. Filtness added, "While post-partum (产后的) women experienced disturbed sleep, they didn’t necessarily experience total reduced sleep time. What we found was that inevitably, new mothers will wake in the night to attend to their infants and the number of times they wake remains consistent during the first 18 post-partum weeks. Sleep disruption reduced over time and it appears this was driven by a reduction in the time it took for new mums to return to sleep, suggesting improved efficiency by mothers at settling their infants or the development of the infants’ circadian rhythm (生理节奏). " She added the findings highlighted the importance of sleep quality as opposed to sleep quantity—especially during the first 12 weeks.
    Referring back to the length of parental leave a woman has, Dr. Filtness said, " It is important when developing regulations for parental leave entitlements that policy makers take into account the high prevalence of excessive daytime sleepiness experienced by new mothers. With the birth of every baby the new mother must adjust to the demands of parenting and one aspect of that is to remain functional while experiencing potentially severe sleep disruption. To put this into context, the assessment tool used to determine new mums’ sleepiness is also used by GPs to determine clinically relevant levels of sleepiness. If any other otherwise healthy person presented to a doctor with this degree of sleepiness they would likely have been offered advice regarding implications for daytime impairment including the impact on sustaining attention and decision making. " [br] Which of the following is true about the research conducted by Dr. Ashleigh Filtness of Queensland University of Technology?
选项 A、She studied the factors that can influence new mothers’ sleep quality.
B、The new mothers were found to have a good night’s sleep after giving birth.
C、Mothers still suffered from extreme tiredness 18 weeks after childbirth.
D、She studied 33 new mothers who were only required to be Australian.
答案 C
解析 事实细节题。定位句指出，阿什莉·菲尔特妮丝博士发现，尽管新妈妈记录了产后第18周晚上稳定睡眠的次数，但她们仍报告说感到极度疲劳，故答案为C)。A)“她研究了会影响新妈妈睡眠质量的因素”，第二段第一句提到昆士兰科技大学的阿什莉·菲尔特妮丝博士研究的是产后妇女的睡眠模式和疲劳情况，而非影响新妈妈睡眠质量的因素，故排除；B)“发现新妈妈产后的夜间睡眠很好”，该段第二句提到新妈妈记录了产后第18周晚上稳定睡眠的次数，并未明确表示她们晚上睡得很好，该选项是对原文的曲解，故排除；D)“她研究了33位新妈妈，并要求她们是澳大利亚人”，该段最后一句指出33位新妈妈来自澳大利亚，但并没有表示菲尔特妮丝博士的报告要求她们是来自澳大利亚的新妈妈，故排除。
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