Monday, December 10, 2012

Urban jogging may be making you dumber

No surprise. There is more pollution, including carbon monoxide, near highways.

http://www.msnbc.msn.com/id/50109534/ns/health-mens_health/#.UMZOOayz6Ms

By Angela Giannopoulos
updated 12/9/2012 12:34:10 PM ET

Dodging traffic and weaving through crowds aren't the only obstacles urbanites face when trying to take their workout to the streets. New research in Belgium shows that people who live in a city and exercise outdoors have higher levels of inflammation and lower scores on cognitive tests than those who exercise outside in the suburbs.

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High levels of air pollution in the city prevented participants from gaining exercise-induced cognitive benefits such as brain plasticity (the ability for the brain to change when presented with new knowledge), comprehension, and mental health. The urban group also had significantly higher blood levels of some inflammation markers.

What's the deal? Inflammation in the brain may cause mental problems, researchers believe. Luckily, the body has a strong recovery mechanism and inflammation can disappear over time, says Romain Meeusen, Ph.D., FACSM, head of the department of Human Physiology and Sports Medicine at Vrije Universiteit Brussel in Belgium. And exercising is always better than staying sedentary.

To make sure pollution isn't ruining your health, use Meeusen's tips before you head outside.

1. Brave rain and wind. These climates blow the fine particles away so you're not left inhaling them.
2. Avoid rush hour. The more cars, the more pollution from exhaust fumes.
3. Head to the park. The more trees between you and the road, the better.

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