It has long been known that tubby people are at greater risk of the potentially killer breathing condition.Scientists have shown for the first time that carrying too many pounds leads to fatty tissue accumulating in airway wallsNow for the first time, scientists have shown carrying too many pounds leads to fatty tissue accumulating in airway walls.
Researchers from Sir Charles Gairdner Hospital, Perth, and the University of Western Australia used samples from 52 people and examined 1,373 airways.They looked at the lungs of people who had died from asthma, as well as asthma sufferers who had died from other causes and a group of those without asthma to evaluate the impact of BMI on the airways.
"This study suggests that another mechanism is also at play. We've found that excess fat accumulates in the airway walls where it takes up space and seems to increase inflammation within the lungs. Asthma attacks can be caused by allergens, such as animal fur or pollen, cold air, exercise, chest infections or other irritants - such as cigarette smoke.Asthma caused by an allergic reaction is known as 'allergic asthma'.
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