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  3. Losing your ability to think and remember is pretty scary. We know the risk of dementia increases with age. But if you have memo

Losing your ability to think and remember is pretty scary. We know the risk of dementia increases with age. But if you have memo

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问题    Losing your ability to think and remember is pretty scary. We know the risk of dementia increases with age. But if you have memory slips, you probably needn’t worry. There are pretty clear differences between signs of dementia and age-related memory loss.
   After age 50, it’s quite common to have trouble remembering the names of people, places and thing quickly, says Dr. Kirk Daffner of Brigham and Woman’s Hospital in Boston.
   The brain ages just like the rest of the body. Certain parts shrink, especially areas in the brain that are important to learning, memory and planning. Changes in brain cells can affect communication between different regions of the brain. And blood flow can be reduced as blood vessels narrow.
   Forgetting the name of an actor in a favorite movie, for example, is nothing to worry about. But if you forget the plot of the movie or don’t remember even seeing it, that’s far more concerning, Daffner says.
   When you forget entire experiences, he says, that’s " a red flag that something more serious may be involved. " Forgetting how to operate a familiar object like a microwave oven, or forgetting how to drive to the house of a friend you’ve visited many times before can also be signs of something going wrong.
   But even then, Daffner says, people shouldn’t panic. There are many things that can cause confusion and memory loss, including health problems like temporary stoppage of breathing, high blood pressure, or depression, as well as medications like antidepressants.
   Even over-the —counter remedies like antihistamines can contribute to memory loss. And the best defense against memory loss is to try to prevent it by building up your brain’s cognitive reserve, Daffner says.
   " Read books, go to movies, take on new hobbies or activities that force one to think in novel ways," he says. In other words, keep your brain busy and working. And also get physically active, because exercise is a known brain booster.  
What should people do when signs of serious memory loss show up?
选项 A、Check the brain’s cognitive reserve.
B、Turn to a professional for assistance.
C、Stop medications affecting memory.
D、Exercise to improve their well-being.
答案A
解析 考查细节理解题。根据文章第七段第二句可知要加强大脑认知的储备。故本题选A。
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