Question

Jogging outside has long been believed as helpful to both body and mind-and if nothing else, a form of stress release after a hard day at the office.

But new research suggests exercising outside could do more harm than good when it comes to your brain.

For jogging in busy, traffic-filled areas could actually cause mental decline(情緒下降).

Belgian researchers have found that people who live in a city and exercise outdoors have higher levels of inflammation(炎癥) and lower scores on cognitive(認(rèn)知的) tests than those who exercise outside in the suburbs.

In a study, they divided exercisers into two groups who exercised three times a week for 12 weeks, between midday and 1pm. One group alternated and walking in a busy , urban area-the other in a rural location.

The researchers, from Vrije Universiteit Brussel, then gave the subjects a test to measure their response time and attention span.

They found that high levels of air pollution prevented participants from getting some of the brain-boosting benefits of exercise, such as the ability to absorb new information and a reduced chance of mental health problems.

The city joggers also had significantly higher blood levels of some inflammation markers, Men's Health magazine reported.

This is important because inflammation in the brain is associated with mental illness.

US research found in November that higher level of air pollution in towns and cities is aging the brains of over-50s by up to three years,

Scientists have found that exposure(暴露) to higher levels of air pollution can lead to decreased(減少) brain power in over-50s.

In a study of almost 15,000 0lder adults, researchers at the US-based National Institute on Aging found fine air particulate matter(顆粒物質(zhì)) may be an important environmental risk factor for reduced thought power, (The Daily Mail)

58. According to the passage, "in a rural location" means_______.

    A. in a city                              B. in the countryside

    C. in the urban area                              D. in a town

59. According to the passage, which of the following facts about jogging is NOT TRUE_______.

    A. jogging in busy, traffic-filled areas could actually cause mental decline

    B. jogging in a highly polluted area can lead to decreased brain power in over-50s.

    C. jogging outside in the suburbs has lower scores on getting new information teststhan in a city

    D. jogging in a area with fine air may be risky for reduced thought power.

60. The writer is trying to get readers to know that _______.

    A. jogging outside might make you clever  B. jogging outside might make you healthy

    C. jogging outside might make you able    D. jogging outside might make you stupid

 

Answer 1

  BCD