Poor food choices and overeating often lead to obesity, and obesity may be a factor in causing more frequent asthma attacks.  An obese person has more fat cells, and these fat cells are a source of proteins that encourage an inflammation response that swells the cells lining airways during asthma attacks.  The more fat cells there are, the more inflammation there can be.  Fat stored around the mid-section or belly can prevent the lungs from fully expanding.  This means that there is less oxygen to support the oxygen needs of a larger body mass.  Increased numbers of fat cells also infringe on airway space and make breathing more difficult.  The resultant wheezing and shortness of breath may limit physical activity.

P.S.  Losing a few pounds when you are overweight can make your overall health better and may reduce your asthma symptoms.

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