首页
登录
职称英语
As concern over Alzheimer’s disease grows, more Americans are turning to ex
As concern over Alzheimer’s disease grows, more Americans are turning to ex
游客
2023-11-21
46
管理
问题
As concern over Alzheimer’s disease grows, more Americans are turning to expensive and potentially unsafe supplements that claim to enhance memory. But prevention of age-related memory loss may be no further away than your refrigerator, and no more expensive than a bag of groceries, experts say. With the aging population of baby boomers in the United States, more research is being done than ever before on diseases such as Alzheimer’s and other forms of dementia. Scientists are developing a better understanding of why memories fade, and along the way they are finding new ways to combat the decline.
For one thing, research increasingly suggests that diet may be important in preventing Alzheimer’s. As the brain ages, it loses the ability to protect itself from the barrage of commonplace dangers it faces every day, particularly inflammation and oxidation, a process which allows damaging free radicals to attach themselves to cells.
While it’s not entirely clear what causes Alzheimer’s disease, amyloid plaque——a goopy, fibrous substance akin to fur balls in the brain——plays a key role. As the plaque builds up, it causes more oxidation and inflammation, and begins to kill off brain cells. In addition, brain cells often stop communicating with each other as people age, making it harder for the brain to process thoughts, retain short-term memory and create new cells.
"Old neurons are like old married couples——they don’t talk to each other very much any- more. They just sit in the room with the remote and stare at the TV," says Dr. James Joseph, director of the Neuroscience Lab at the Human Nutrition Research Center on Aging at Tufts University in Boston. While research in the field of aging and nutrition is still in its infancy, scientists have found that diet may help minimize the brain’s sensitivity to oxidation and inflammation, as well as improve brain cells’ ability to communicate with each other.
One of the most intriguing areas of research involves the role of antioxidants, potent chemicals in plants that protect against free radicals, highly active molecules that damage cells. Antioxidants are what give fruits and vegetables their bright colors. Plants produce these chemicals to protect themselves from environmental insults, such as pollution, and when humans eat plants, they also reap the protective benefits. [br] According to the passage, brain cells _________.
选项
A、are highly active.
B、often stop communicating with each other as we. grow old.
C、are unable to process thoughts.
D、are like old married couples.
答案
B
解析
细节题。文章第三段提到:“In addition,brain cells often stop communicating with each other as people age,making it harder for the brain to process thoughts,retain short-term memory and create new cells.” (除此之外,随着年龄的增长,人类脑细胞之间的交流会经常停止,这会使大脑处理思想,保持短期记忆及制造新的脑细胞的能力降低。),所以
转载请注明原文地址:https://tihaiku.com/zcyy/3207153.html
相关试题推荐
TheGreatLymeDebateThere’sadebateragingoverLymedisease,althoughyou’
TheGreatLymeDebateThere’sadebateragingoverLymedisease,althoughyou’
PassageOne(1)TherewereonlytwoAmericansstoppingatthehotel.Th
PassageOne(1)TherewereonlytwoAmericansstoppingatthehotel.Th
PassageOne(1)TherewereonlytwoAmericansstoppingatthehotel.Th
PassageOne(1)Oneofthese,concerningwhichIhavesaidlittle,ist
PassageOne(1)Oneofthese,concerningwhichIhavesaidlittle,ist
PassageOne(1)Oneofthese,concerningwhichIhavesaidlittle,ist
Heistotally________tootherpeople’sattitudes.A、unconcernedB、carelessC、indi
Manylocalpeopleweredeeplyconcernedaboutthenuclearleakage,________wasst
随机试题
Ifmandnarepositiveintegers,isneven?(1)m(m+2)+1=mn(2)m(m+n)
Thoughthelong-term______cannotbepredicted,theprojecthasbeenapprovedb
【B1】[br]【B8】A、grantsB、pensionsC、revenuesD、degreesA语义衔接题。根据文意,本处应该填的是国家对大学的
杜威的问题解决模型认为解决问题一般包括五个步骤,依次是失调、诊断、假设、推断、(
缺血性ST-T改变有哪些特征性规律?
关于同工酶的叙述正确的是:()A.催化相同化学反应 B.不同组织中的含
A.泻白散 B.麻黄汤 C.麻杏甘石汤 D.苏子降气汤 E.小青龙汤主治
患者,男,50岁。素体肥胖,胸闷憋气,时感胸痛,甚则胸痛彻背,舌质紫暗,苔薄腻,
女性,20岁,咽痛、发热、畏寒,起病急。检体:咽部充血,扁桃体肿大伴脓性分泌物,
关于结核性脑膜炎下列错误的是A.是小儿结核病中最严重的一型 B.常在结核原发感
最新回复
(
0
)