首页
登录
职称英语
For many a frazzled parent, bedtime—their children’s, that is—is the best pa
For many a frazzled parent, bedtime—their children’s, that is—is the best pa
游客
2023-12-13
17
管理
问题
For many a frazzled parent, bedtime—their children’s, that is—is the best part of the day. But it can be hard to ease snooze-averse kids into bed, and now a new study confirms that this is an age-old problem: children have consistently gotten less sleep than recommended guidelines, for at least the past 100 years.
Researchers from the University of South Australia did some historical spelunking, looking for every study about sleep duration in children beginning from the end of the 19th century through 2009. They discovered 300 such studies, dating all the way back to a French paper from 1897, and found that both age-specific recommendations for appropriate sleep and the amount of time kids actually spend in dreamland both declined at similar rates: 0.71 minutes per year for recommendations versus 0.73 minutes per year for actual sleep duration, according to the study published Monday in the journal Pediatrics. Across the board, children got about 37 minutes less sleep than was recommended.
Another constant: societal hand-wringing over children’s lack of sleep and a tendency to blame the hectic pace of modern life.
"We found that indeed kids are sleeping less," says senior author Tim Olds, a professor of health sciences at the University of South Australia in Adelaide, who studies health and how we use our time. "People are always recommending kids sleep more than they do."
Over the 112 years the study covered, children lost about 75 minutes of shut-eye: in 1897, experts were recommending that kids sleep 1 hr. 15 min. more than that was advised in 2009.
What’s perhaps most eye-opening is the researchers’ observation that sleep recommendations are pretty subjective; there’s just not that much empirical evidence about how much sleep children actually need.
So, how much are kids supposed to sleep anyway? The National Sleep Foundation in Arlington, Va., says babies between the ages of 3 to 11 months should snooze for a total of 14 to 15 hours, while toddlers between 1 to 3 years old should get 12 to 14 hours. Preschoolers need 11 to 13 hours, and elementary schoolers should sleep between 10 to 11 hours. Older children and teens need a minimum of 8.5 hours.
Assessing sleep needs is complicated because tracking how long a child sleeps doesn’t tell you how long he should be sleeping; he may not be getting enough z’s or he may be getting too many. Other research has found that 20% of kids report they’re sleepy during the day and can’t focus in school; 60% say they’d like to get more sleep. So perhaps they do need more sleep. But in reality, there is almost no evidence about how much sleep kids truly need to function their best. "We think for no particularly good reason that kids need more sleep than they’re getting," says Olds. "Every so often a group of blokes get together and say, what do you recommend, boys? Should we push it up to 9 hours, 15 minutes? It really is like that, honestly. It’s an arbitrary public-health line in the sand that people draw."
Throughout the study period, concerns were expressed that modern life and overstimulation prevented children from getting the sleep they need. As far back as the late 19th century, an editorial in the British Medical Journal bemoaned our sleepless society, the stress and bustle of everyday life, the gaslights and the trolley cars. In 1905, one study noted that "This is a sleepless age and more and more ... we are turning night into day." Says Olds: "Throughout the 100-year period, we have been blaming whatever the new technology is—radio, TV, the Internet. Information is coming in so fast that we never wind down."
What’s more, different countries have different standards: in Japan, for example, it’s more or less accepted that kids doze off in class because they’ve stayed up late studying. Australian kids sleep almost an hour more a day than American kids, who sleep less than nearly all other children.
"We’re not saying kids don’t need more sleep," says Olds. "My hunch is yes, they do need more sleep, but we haven’t seen good evidence of that." [br] The reason that assessing sleep needs is difficult is that______.
选项
A、children’s needs for sleep differ from person to person.
B、no experiment has been carried out.
C、there are differences between a child’s desire for sleep and what is really needed.
D、children’s physical conditions change constantly.
答案
C
解析
细节推断题。文章第八段提到评估睡眠需要之所以难是因为无法通过孩子的实际睡眠来判断他们实际需要多少。原文是“Assessing sleep needs is complicated because tracking how long a child sleeps doesn’t tell you how long he should be sleeping;he may not be getting enough z’s or he may be getting too many.”A选项不对,因为根本没有办法知道孩子到底需要多少睡眠。
转载请注明原文地址:https://tihaiku.com/zcyy/3268961.html
相关试题推荐
Thechildrenknowthetaboowords,thepoliteformsofaddressduringA、Pragmatic
______meansthatitisimpossibleforchildrentoacquiresomeparticularlangu
Parentsandgrandparentswithmoneytosparearenolongerwaitinguntildea
Parentsandgrandparentswithmoneytosparearenolongerwaitinguntildea
Parentsandgrandparentswithmoneytosparearenolongerwaitinguntildea
Childrentodayspendmoretimestareatcomputerand(1)______TVscreensbo
Childrentodayspendmoretimestareatcomputerand(1)______TVscreensbo
Childrentodayspendmoretimestareatcomputerand(1)______TVscreensbo
Childrentodayspendmoretimestareatcomputerand(1)______TVscreensbo
Formanyafrazzledparent,bedtime—theirchildren’s,thatis—isthebestpa
随机试题
Punctuality(准时)meansobservingregularorappointedtime.Amanwhogetsu
In1924America'sNationalResearchCoun
下面4种路由中,哪一种路由的子网掩码是255.255.255.255( )。
乌梅丸可出现的临床表现是( )。A.久泻久痢 B.渴欲饮冷 C.赤多白少
对人和动物均致病的是A:伊氏李斯特菌B:无害李斯特菌C:产单核细胞李斯特菌
共用题干 患儿9岁。自幼反复肺内感染,本次肺内感染再发人院,伴双膝疼痛。若检查
患者,女性,40岁,因肠梗阻入院。采用非手术治疗期间,护士发现腹部出现固定性压痛
下列不属于四大名旦的是( )。A.梅兰芳 B.程砚秋 C.尚小云 D.杨
关于火灾警报器设置要求的说法,错误的有()。A.未设置消防联动控制器的火灾
青紫舌可见于A.先天性心脏病 B.药物 C.食物中毒 D.寒凝
最新回复
(
0
)