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Overweight people breathe more bad air: Study

Written by: QMI Agency
Feb. 4, 2014

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MONTREAL — Overweight and obese adults breathe up to 50% more air per day than adults at a healthy weight, which makes them more vulnerable to air contaminants that cause asthma and other diseases, University of Montreal researchers have found.

The extra air exposes them to larger amounts of ammonia, ozone, nitrogen dioxide and other irritating elements, the study says.

Children who pack on extra pounds breathe up to 24% more air than children of normal weight, the researchers found.

"The situation for obese children may be even more worrisome," the university said in a statement.

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"Because of their much higher metabolism — in relation to their low body weight — they breathe more air per kilogram of weight than obese adults."

The study was published in the journal Risk Analysis.

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