Researchers say people traveling in traffic are three times more likely to suffer a heart attack. They say the risk of a heart attack is greatest within an hour of being in traffic.The findings are based on a German study of almost seven hundred people who suffered heart attacks. The patients described their activities during the four days before their heart attack. Researchers found that those who had been in traffic were three times more likely to have a heart attack within one hour, compared to those who had not been in traffic. Most of those in the study had been traveling by car. But some had been on bicycles and others were on buses.Research shows that people in cars and buses are exposed to ten times the amount of pollutants as people walking on the street. That is largely because they breathe in the particles and gases released from the vehicles in front of them. Over time, these small particles speed the build-up of a sticky substance in the blood. This can cause blockages to form in the arteries around the heart and lead to a heart attack.Other studies have also linked heart trouble to stress, similar to the kind that people face while driving in heavy traffic. But the researchers of the latest study say they do not know whether the increased heart attack risk is the result of stress or pollution. They suggest it may be a combination of stress, noise and pollution. Experts say the research shows the need for cleaner vehicles and better city planning to lower the risk of the heart attack.16. What is found about the participants in the German study?A. Most of them died of heart attacks soon.B. They recovered from heart attacks soon.C. They had a higher risk of heart attacks.D. They had a lower risk of heart attacks.17. According to the study, which of the following is the safest for people who are suffering heart attacks?A. Going on foot.B. Driving a car.C. Taking a bus.D. Riding a bicycle.18. The particles released from vehiclesA. cause high blood pressureB. make the blood stickierC. become blocked in the arteriesD. do little harm to the heart19. According to the studies, which of the following is NOT likely to cause heart attacks?A. Stress.B. Noise.C. Pollution.D. Traffic accidents.20. What suggestion do experts give on lowering the risk of heart attacks?A. Reducing traffic as much as possible.B. Living away from noise.C. Keeping vehicles cleaner.D. Planting more trees in the city.
Researchers say people traveling in traffic are three times more likely to suffer a heart attack. They say the risk of a heart attack is greatest within an hour of being in traffic.
The findings are based on a German study of almost seven hundred people who suffered heart attacks. The patients described their activities during the four days before their heart attack. Researchers found that those who had been in traffic were three times more likely to have a heart attack within one hour, compared to those who had not been in traffic. Most of those in the study had been traveling by car. But some had been on bicycles and others were on buses.
Research shows that people in cars and buses are exposed to ten times the amount of pollutants as people walking on the street. That is largely because they breathe in the particles and gases released from the vehicles in front of them. Over time, these small particles speed the build-up of a sticky substance in the blood. This can cause blockages to form in the arteries around the heart and lead to a heart attack.
Other studies have also linked heart trouble to stress, similar to the kind that people face while driving in heavy traffic. But the researchers of the latest study say they do not know whether the increased heart attack risk is the result of stress or pollution. They suggest it may be a combination of stress, noise and pollution. Experts say the research shows the need for cleaner vehicles and better city planning to lower the risk of the heart attack.
16. What is found about the participants in the German study?
A. Most of them died of heart attacks soon.
B. They recovered from heart attacks soon.
C. They had a higher risk of heart attacks.
D. They had a lower risk of heart attacks.
17. According to the study, which of the following is the safest for people who are suffering heart attacks?
A. Going on foot.
B. Driving a car.
C. Taking a bus.
D. Riding a bicycle.
18. The particles released from vehicles
A. cause high blood pressure
B. make the blood stickier
C. become blocked in the arteries
D. do little harm to the heart
19. According to the studies, which of the following is NOT likely to cause heart attacks?
A. Stress.
B. Noise.
C. Pollution.
D. Traffic accidents.
20. What suggestion do experts give on lowering the risk of heart attacks?
A. Reducing traffic as much as possible.
B. Living away from noise.
C. Keeping vehicles cleaner.
D. Planting more trees in the city.