Question

A newly published report indicates that jogging could have adverse health effects, especially for those who do it alone. A team of researchers from Harvard University has suggested that going for a run on your own is not as healthy as previously believed and is nowhere near as beneficial as jogging as part of a group. They suggested it could actually be detrimental to one’s health. Experiments conducted on rats indicated that running alone raises stress levels and stifles brain cell regeneration. Professor Elizabeth Gould, who led the research, said: “These results suggest that, in the absence of social interaction, a normally beneficial experience can exert a potentially deleterious influence on the brain.” The researchers monitored two groups of rats on exercise wheels. One group exercised alone, the other as part of a rodent jogging team. After two weeks, the scientists conducted tests to ascertainthe rate of brain cell growth in all of the test animals. The results revealed that the communal joggers had double the amount of new brain cells as the solo runners. Professor Gould concluded that: “When experienced in a group setting, running stimulates neurogenesis (brain cell growth). However, when running occurs in social isolation, these positive effects are suppressed.” Joggers around the world should perhaps take the research with a pinch of salt and remember that jogging is healthier than the rat race.
Some Harvard researchers claim that jogging alone a. is not healthy. b. is as healthy as it was thought. c. is not as healthy as it was thought. 2. Jogging alone a. increases the production of brain cells. b. increases the size of the brain. c. reduces the production of brain cells. 3. The report suggests that if you decide to go jogging a. you should do it on your own. b. you should do it with someone else. c. you should do it when your brain tells you

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