http___metro-portal.hr_zagadjeni-zrak-povisuje-krvni-tlak_40221_1.xml
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People who live in urban areas tend to have higher blood pressure, according to a new study that pins the blame on particulate air pollution. Researchers examined data from an ongoing study of 5,000 people that focused on the development of heart disease. They analyzed the effects of air pollution exposure — pollution ranging from auto exhaust and power plants to roadway dust — on blood pressure between 2000 and 2003. The findings are to be announced at a meeting of the American Thoracic Society being held in New Orleans this week. "This finding points out that air pollution does not only trigger life threatening events like heart attacks and strokes, but that it may also influence the underlying processes, which lead to chronic cardiovascular diseases," said Dr. Barbara Hoffman of the University of Duisburg-Essen and senior author of the study. "It is therefore necessary to further our attempts to prevent chronic exposure to high air pollution as much as possible." High blood pressure increases the risk for atherosclerosis, a hardening of the arteries, which leads to cardiovascular diseases like heart attacks and strokes. Previous work had shown that daily increases in air pollution can raise blood pressure, but little was known about long-term effects. "Our results might explain why people who live in more polluted areas are at a higher risk to suffer and die from these diseases," Hoffman said. The results held even after other factors that influence blood pressure were taken into account, including age, gender, smoking, weight and even local noise. - 7 Ways to Raise Your Risk of Stroke - Top 10 Amazing Facts About Your Heart - 7 Ways the Mind and Body Change With Age
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Zagađeni zrak povisuje krvni tlak Studije su već potvrdile loš utjecaj zagađenosti na krvni tlak, ali malo se do sada znalo o dugoročnom utjecaju zraka u urbanim područjima na naš tlak Istraživanje provedeno na Sveučilištu Dusiburg-Essen u Njemačkoj pokazalo je da osobe koje žive u urbanim područjima, gdje je zagađenost zraka visoka, imaju viši krvni tlak od osoba koje žive u manje zagađenim područjima. Znanstvenici su u sklopu studije proučavali utjecaj zagađenosti zraka na krvni tlak u razdoblju od 2000. do 2003. godine. I dok su neke prijašnje studije već pokazale loš utjecaj zagađenosti na krvni tlak, malo se znalo o srednjoročnim i dugoročnim utjecajima izloženosti zagađenom zraku. Kako kaže Barbara Hoffman, voditeljica Odjela za ekološku i kliničku epidemiologiju na Sveučilištu Duisburg-Essen, rezultati su pokazali da život u područjima visoke zagađenosti zraka itekako ima veze s povišenim krvnim tlakom. Istraživanje je pokazalo da osobe koje žive u urbanim, zagađenijim područjima imaju povišen i sistolički i dijastolički krvni tlak, čak i kada se u obzir uzmu i drugi važni faktori koji utječu na tlak, kao što su dob, spol, pušenje, težina i tako dalje. Osim toga, rezultati istraživanja su pokazali i da je krvni tlak viši u žena nego u muškaraca koji žive u područjima zagađenog zraka.