题目内容
Silent and Deadly Transient ischemic attacks (TIAS), or mini-strokes, result from temporary interruptions of blood flow to the brain. Unlike full strokes, they present symptoms lasting anywhere from a few seconds to 24 hours. Rarely do they cause permanent neurological damage, but they are often precursors of a major stroke. "Our message is quite clear," says Dr. Robert Adams, professor of neurology at the Medical College of Georgia in August. "TIAS, while less severe than strokes in the short term, are quite dangerous and need a quick diagnosis and treatment as well as appropriate follow-up to prevent future injury." Unfortunately, mini-strokes are greatly under diagnosed. A study conducted for the National Stroke Association indicates that 2.5% of all adults aged 18 or older (about 4.9 million people in the U. S. ) have experienced a confirmed TIA. An additional 1.2 million Americans over the age of 45, the study showed, have most likely suffered a mini-stroke without realizing it. These findings suggest that if the public knew how to spot the symptoms of stroke, especially mini-strokes, and sought prompt medical treatment, thousands of lives could he saved and major disability could be avoided. The problem is that the symptoms of a mini-stroke are often subtle and passing. Nonetheless, there are signs you can look out for: *Numbness or weakness in the face, arm or leg, especially on one side of the body. *Trouble seeing in one or both eyes. *Confusion and difficulty speaking or understanding. *Difficulty walking, dizziness or loss of coordination. *Severe headache with no known cause. Along with these symptoms, researchers have identified some key indicators that increase your chances of having a full-blown stroke after a TIA: if you’re over 60, have experienced symptoms lasting longer than 10 minutes, feel weak and have a history of diabetes. As with many diseases, you can help yourself by changing your lifestyle. The first things you should do are quit smoking, limit your intake of alcohol to no more than a drink or two a day and increase your physical activity. Even those who suffer from high blood pressure or diabetes can improve their odds—and minimize complications if they do have a stroke—by keeping their illness under control. If you experience any of the symptoms, your first call should be to your doctor. It could be the call that saves your life. The passage indicates that the symptoms of mini-strokes ______.
查看答案
搜索结果不匹配？点我反馈
更多问题
“Often mistaken never in doubt.” That wry phrase describes us all more than we’d like to admit. The psychological study of misconceptions shows that all of us possess many beliefs that are flawed or flat-out wrong---and also that we cling to these fallacies with remarkable tenacity. As a result just hearing the correct explanation isn’t enough. Most methods of instruction and training assume that if you provide people with the right information it will replace any mistaken information listeners may already possess. But especially when our previous beliefs(even though faulty) have proved useful to us and when they appear to be confirmed by everyday experience we are reluctant to let them go.Donna Alvermann a language and literacy researcher at the University of Georgia notes that in study after study "students ignored correct textual information when it conflicted with their previously held concepts. On measures of free recall and recognition the students consistently let their incorrect prior knowledge override incoming correct information." It’s what our mothers called "in one ear and out the other." We have to actively disabuse ourselves or others of erroneous conceptions and research from cognitive science and psychology points the way. Although much of this research concerns misguided notions of how the physical world works the techniques it has produced can be used to correct any sort of deficient understanding.
Happy Marriage, Happy Heart Happily married people have lower blood pressure 1 unhappily married people or singles, a Brigham Young University study says. On the other hand, even having a supportive social network did not translate into a blood pressure benefit for singles or unhappily 2 people, according to the study. "There seem to be some unique health benefits from marriage. It’s not just being married 3 benefits health—what’s really the most protective of health is having a happy 4 ." study author Julianne Holt-Lunstad, a psychologist who specializes in relationships and health, said in a prepared statement. The study included 204 married and 99 5 adults who wore portable blood-pressure monitors for 24 hours. The 6 recorded blood pressure at random intervals and provided a total of about 72 readings. "We wanted to capture participants’ blood pressure doing whatever they normally 7 in everyday life. Getting one or two readings in a clinic is not really 8 of the fluctuations that occur throughout the day," Holt-Lunstad said. Overall, happily married people scored four points 9 on the blood pressure readings than single adults. The study also found that blood 10 among married people—especially those in happy marriages 11 more during sleep than in single people. "Research has shown that people whose blood pressure remains high throughout the night are at 12 greater risk of heart disease than people whose blood pressure drops," Holt-Lunstad said. The study was published in the March 20 13 of the journal Annals of Behavioral Medicine. The study also found that unhappily married adults have higher blood pressure than 14 happily married and single adults. Holt-Lunstad noted that married couples can encourage healthy habits in one 15 such as eating a healthy diet and having regular doctor visits. People in happy marriages also have a source of emotional support, she said.
Road Trip Vacations It’s summer. In the United States, it’s the season of swimming pools, barbeques, camping and road trips. Road trip vacations where the car journey is part of the fun are especially popular with college students, who like to explore the country on wheels. These budget trips are ideal for students who often have plenty of free time but little money. "Ever since I went to college, I’ve been traveling around a lot, exploring the country," said Austin Hawkins, a 19-year-old college student from New York. This summer, Hawkins and his friends have spent weekends traveling in New England. "The best part about car trips", said Hawkins, "is that you can be spontaneous. On a road trip, if you get interested in things you see along the way you can stop and explore." Matt Roberts, a 20-year-old student from Ohio who drove to Montreal, Canada, agrees. "With road trips you don’t have to plan in advance, you can just get into a car and drive." Even with high gas prices, driving with friends is cheaper than flying. Roberts paid about 40 dollars for gas, but a round trip plane ticket would have cost nearly 400 dollars. Driving trips first became popular in the 1920s. Newly paved roads and improved cars made it possible to travel longer distances. Motels started appearing outside cities. By the 1950s, car ownership became the norm. Construction of the U. S. interstate highway system began in 1956 and motel and restaurant chains popped up everywhere making long distance trips easier. Today, the U.S. has the highest car ownership rate in the world. Only 8 percent of American homes have no car, according to the most recent U. S. census. Though many college students don’t own a car, most have access to one. On many of Hawkins’ trips, they used a borrowed van. Hawkins’ most memorable road trip took place over spring break. He and two friends drove from New York to New Orleans to volunteer, helping rebuild the city after Hurricane Katrina hit it last July. They crossed the country in two days and slept in their car in church parking lots. Roberts’ road trip to Canada last winter was even more eventful. Upon arriving in Montreal, they were lost in a blizzard and shivering in the —25~cold. To find their hotel, they turned on a laptop and drove around in circles until they found a spot with wireless Internet coverage. "I know we should have planned better, but we’re young. Now, when I see those guys I always say: ’Remember when we were lost in the snow storm!’ I’ll never forget that." Which of the following words can best describe Hawkins’ trip to New Orleans
Silent and Deadly Transient ischemic attacks (TIAS), or mini-strokes, result from temporary interruptions of blood flow to the brain. Unlike full strokes, they present symptoms lasting anywhere from a few seconds to 24 hours. Rarely do they cause permanent neurological damage, but they are often precursors of a major stroke. "Our message is quite clear," says Dr. Robert Adams, professor of neurology at the Medical College of Georgia in August. "TIAS, while less severe than strokes in the short term, are quite dangerous and need a quick diagnosis and treatment as well as appropriate follow-up to prevent future injury." Unfortunately, mini-strokes are greatly under diagnosed. A study conducted for the National Stroke Association indicates that 2.5% of all adults aged 18 or older (about 4.9 million people in the U. S. ) have experienced a confirmed TIA. An additional 1.2 million Americans over the age of 45, the study showed, have most likely suffered a mini-stroke without realizing it. These findings suggest that if the public knew how to spot the symptoms of stroke, especially mini-strokes, and sought prompt medical treatment, thousands of lives could he saved and major disability could be avoided. The problem is that the symptoms of a mini-stroke are often subtle and passing. Nonetheless, there are signs you can look out for: *Numbness or weakness in the face, arm or leg, especially on one side of the body. *Trouble seeing in one or both eyes. *Confusion and difficulty speaking or understanding. *Difficulty walking, dizziness or loss of coordination. *Severe headache with no known cause. Along with these symptoms, researchers have identified some key indicators that increase your chances of having a full-blown stroke after a TIA: if you’re over 60, have experienced symptoms lasting longer than 10 minutes, feel weak and have a history of diabetes. As with many diseases, you can help yourself by changing your lifestyle. The first things you should do are quit smoking, limit your intake of alcohol to no more than a drink or two a day and increase your physical activity. Even those who suffer from high blood pressure or diabetes can improve their odds—and minimize complications if they do have a stroke—by keeping their illness under control. If you experience any of the symptoms, your first call should be to your doctor. It could be the call that saves your life. All of the following may be signs of mini-strokes EXCEPT for ______.
微信支付 
支付宝支付