首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
Chronobiology might sound a little futuristic — like something from a science fiction novel, perhaps - but it’s actually a field
Chronobiology might sound a little futuristic — like something from a science fiction novel, perhaps - but it’s actually a field
admin
2020-01-11
60
问题
Chronobiology might sound a little futuristic — like something from a science fiction novel, perhaps - but it’s actually a field of study that concerns one of the oldest processes life on this planet has ever known: short-term rhythms of time and their effect on flora and fauna.
This can take many forms. Marine life, for example, is influenced by tidal patterns. Animals tend to be active or inactive depending on the position of the sun or moon. Numerous creatures, humans included, are largely diurnal — that is, they like to come out during the hours of sunlight.
Nocturnal
animals, such as bats and possums, prefer to forage by night. A third group are known as crepuscular: they thrive in the low- light of dawn and dusk and remain inactive at other hours.
When it comes to humans, chrono-biologists are interested in what is known as the circadian rhythm. This is the complete cycle our bodies are naturally geared to undergo within the passage of a twenty-four-hour day. Aside from sleeping at night and waking during the day, each cycle involves many other factors such as changes in blood pressure and body temperature. Not everyone has an identical circadian rhythm. ’Night people’, for example, often describe how they find it very hard to operate during the morning, but become alert and focused by evening. This is a benign variation within circadian rhythms known as a chronotype.
Scientists have limited abilities to create durable modifications of chronobiological demands. Recent therapeutic developments for humans such as artificial light machines and melatonin administration can reset our circadian rhythms, for example, but our bodies can tell the difference and health suffers when we breach these natural rhythms for extended periods of time. Plants appear no more malleable in this respect; studies demonstrate that vegetables grown in season and ripened on the tree are far higher in essential nutrients than those grown in greenhouses and ripened by laser.
Knowledge of chronobiological patterns can have many pragmatic implications for our day-to-day lives. While contemporary living can sometimes appear to subjugate biology — after all, who needs circadian rhythms when we have caffeine pills, energy drinks, shift work and cities that never sleep? — keeping in synch with our body clock is important.
The average urban resident, for example, rouses at the eye-blearing time of 6.04 a.m., which researchers believe to be far too early. One study found that even rising at 7.00 a.m. has deleterious effects on health unless exercise is performed for 30 minutes afterward. The optimum moment has been whittled down to 7.22 a.m.; muscle aches, headaches and moodiness were reported to be lowest by participants in the study who awoke then.
Once you’re up and ready to go, what then? If you’re trying to shed some extra pounds, dieticians are adamant: never skip breakfast. This disorients your circadian rhythm and puts your body in starvation mode. The recommended course of action is to follow an intense workout with a carbohydrate-rich breakfast; the other way round and weight loss results are not as pronounced.
Morning is also great for breaking out the vitamins. Supplement absorption by the body is not temporal-dependent, but naturopath Pam Stone notes that the extra boost at breakfast helps us get energized for the day ahead. For improved absorption, Stone suggests pairing supplements with a food in which they are soluble and steering clear of caffeinated beverages. Finally, Stone warns to take care with storage; high potency is best for absorption, and warmth and humidity are known to deplete the potency of a supplement.
After-dinner espressos are becoming more of a tradition — we have the Italians to thank for that — but to prepare for a good night’s sleep we are better off putting the brakes on caffeine consumption as early as 3 p.m. With a seven-hour half-life, a cup of coffee containing 90 mg of caffeine taken at this hour could still leave 45 mg of caffeine in your nervous system at ten o’clock that evening. It is essential that, by the time you are ready to sleep, your body is rid of all traces.
Evenings are important for winding down before sleep; however, dietician Geraldine Georgeou warns that an after-five carbohydrate-fast is more cultural myth than chronobiological demand. This will deprive your body of vital energy needs. Overloading your gut could lead to indigestion, though. Our digestive tracts do not shut down for the night entirely, but their work slows to a crawl as our bodies prepare for sleep. Consuming a modest snack should be entirely sufficient.
Which of the following phrases best describes the main purpose of this essay?
选项
A、to suggest healthier ways of eating, sleeping and exercising
B、to describe how modern life has made chronobiology largely irrelevant
C、to introduce chronobiology and describe some practical applications
D、to plan a daily schedule that can alter our natural chronobiological rhythms
答案
C
解析
本文一开始解释了什么是生物钟,然后给出了一些具体的时间及饮食建议,因此正确答案为C。
转载请注明原文地址:https://kaotiyun.com/show/ddwO777K
本试题收录于:
CATTI三级笔译综合能力题库翻译专业资格(CATTI)分类
0
CATTI三级笔译综合能力
翻译专业资格(CATTI)
相关试题推荐
Insomecountries,peoplearenolongerallowedtosmokeinmanypublicplacesandofficebuildings.Doyouthinkthisisagood
Whatdoestheprofessormeanbythefollowingstatement:Itwasanatomthatcontainedintheformofpureenergythefundamenta
"SocialReadjustmentScales"HolmesandRahedevelopedtheSocialReadjustmentRatingScale(SRRS)tomeasurelifechangeas
"LifeinOurSolarSystem"Althoughwecanimaginelifebasedonsomethingotherthancarbonchemistry,weknowofnoexample
Whydoesthewomanwanttostartworkingattheartmuseumbeforethecurrentsemesterends?
WritingBasedonKnowledgeandExperienceDirections:Forthistask,youwillwriteanessayinresponsetoaquestiont
IssuessurroundingAthedistributionofBincomeareamongCmostcontroversialinDeconomics.
WeAcouldseehowvariousBfactorscauseperiodsofglobalwarmingandcoolingConlyifwecombinepastdataDwithcurrentknowl
Before,wheneverwehadwealth,westarteddiscussingpoverty.Whynotnow?Whyisthecurrentpoliticsofwealthandpovertyse
Formorethantwocenturies,American’scollegesanduniversitieshavebeenthebackboneofthecountry’sprogress.Theyhaveed
随机试题
下列有关心血管神经症与器质性心脏病关系描述不正确的有
非处方药的标签和说明书必须经何部门批准( )。
不属于无效的民事行为是()。
一台三相异步电动机在额定电压下空载起动与在额定电压下满载起动相比,两种情况下合闸瞬间的起动电流()。
下列会计分录中,不属于复合会计分录的有()。
任何情况下开户单位不得从本单位的现金收入中直接支付。()
保健品公司甲并未授予张某代理权,但张某为了以后能获得甲公司的独家代理权而主动开始以甲公司的名义推销甲的产品,甲公司知道了张某的行为而未做否认的表示。根据我国《民法通则》的有关规定,张某的行为应当()。
奥苏伯尔认为学生的学习主要是()。
Threatsfromnomadicpeopleinthenorthwere【C1】______throughoutChinesehistory.TheywerecontinuallyattackingtheChine
Whatexamplesdopeoplegivetosupporttheirviewthatahigherspeedlimitisstillsafe?
最新回复
(
0
)