首页
财务会计
医药卫生
金融经济
考公考编
外语考试
学历提升
职称考试
建筑工程
IT考试
其他
登录
职称考试
共用题干 第二篇High Stress May Damage MemoryAccording to a report issued in May 199...
共用题干 第二篇High Stress May Damage MemoryAccording to a report issued in May 199...
admin
2020-12-24
18
问题
共用题干
第二篇
High Stress May Damage Memory
According to a report issued in May 1998,elderly people who have consistently high
blood levels of cortisol (皮质醇)don't score as well on memory tests as their peers with
lower levels of the stress hormone. What's more,high levels of cortisol are also associated
with shrinking of the hippocampus(海马区),a region of the brain that plays a key role in
learning and memory.
The findings suggest that even cortisol levels in the normal,"healthy"range can
actually accelerate brain aging.
The study results"now provide substantial evidence that long-term exposure to adrenal
(肾上腺的)stress hormones may promote hippocampal aging in normal elderly humans",
write Nada Porter and Philip Landfield.Cortisol is a hormone released in response to stress
by the adrenal glands(腺),which sit on top of the kidneys(肾).
Over a 5-to 6-year period,Dr. Sonia Lupien and his colleagues measured 24-hour
cortisol levels in 51 healthy volunteers,most of whom were in their 70s.
The researchers tested the volunteers' memory on six people in the increasing/high
category and five people in the decreasing/moderate group.The groups did not differ in
tests of immediate memory,but the increasing/high cortisol group had other memory
problems compared with those in the decreasing/moderate group.
The researchers also found that the total volume of the hippocampus in those in the
increasing/high group was 14% lower than those in the decreasing/moderate group,
although there were no differences in other brain regions.
The results suggest that“…brain aging can be accelerated by levels of adrenal
hormones that are not generally regarded as pathological(病态的)and that variation within
this normal range is related to variation in the rate of brain aging",write Porter and
Landfield."This further suggests that chronic stress may accelerate the worsening of the
hippocampus."
选项
According to the passage,when people are under stress,
A:the adrenal glands will produce cortisol.
B:the kidneys will shrink rapidly.
C:the hippocampus will produce cortisol.
D:the brain will work more efficiently.
答案
A
解析
转载请注明原文地址:https://ti.zuoweng.com/ti/F8EQKKKQ
相关试题推荐
We'rehappytoreportthatbusinessisboomingthisyear.()
Hundredsofbuildingswerewreckedbytheearthquake.()A.shakenB.damagedC.fall
Ihavenoalternativebuttoreporthimtothelocalpolice.()A.timeB.meanC.ch
Hundredsofbuildingswerewreckedbytheearthquake.(2009年真题)()A.damagedB.shak
Ihavenoalternativebuttoreporthimtothelocalpolice.()A.timeB.meanC.ch
共用题干 WhereDidAlltheShipsGo?TheBermudaTriangle(三角区)isone________(1)t...
共用题干 WhereDidAlltheShipsGo?TheBermudaTriangle(三角区)isone________(1)t...
共用题干 WhereDidAlltheShipsGo?TheBermudaTriangle(三角区)isone________(1)t...
共用题干 WhereDidAlltheShipsGo?TheBermudaTriangle(三角区)isone________(1)t...
共用题干 WhereDidAlltheShipsGo?TheBermudaTriangle(三角区)isone________(1)t...
随机试题
体循环起始于 A.左心房 B.右心房 C.右心室 D.左心室 E.冠状
可分为珍贵文物和一般文物的是()。
一般而言,如果一国出口大于进口,则( )。
共用题干 甲施工企业2011年年末损益表和资产负债表中有关资料如下:根据以上资
下列公式中,由两次重复测量较差计算单次测量中误差的公式是()。
背景 某施工单位承接了农村公路的5*16m简支板桥施工项目,桥梁上部结构为先张
某心理咨询师,在某超级市场遇见一位他的患者也正与其熟人在一起购物,这位治疗师故
甲公司投标中标承包了某开发商的写字楼工程施工任务,下列做法中合法的是()。A.甲公司将部分劳务作业任务分包给乙公司B.开发方指定丙公司为安装工程的分包人C.
关于薪酬本质的特征,下列说法错误的是()。A:薪酬以劳动关系为前提,只有当企业与员工之间存在劳动关系时才能产生这种交换B:薪酬是企业以法定货币和法定形式定期或
()是指商业银行在追求短期商业目的和长期发展目标的系统化管理过程中,不适当的发展规划和战略决策可能威胁商业银行未来发展的潜在风险。A.市场风险B.战略风险