A new study has said that apple-shaped women with a waist bigger than 88cm are at increased risk of developing asthma - even if they have a normal body weight.
It is well-known that being overweight raises the risk of asthma but the new study, by the Northern California Cancer Centre at Berkeley, suggests that the amount of weight women carry around the abdomen might be particularly important.
Asthma
It''s a lung condition characterized by inflammation of the bronchi and constriction of the airways that result in coughing, wheezing or breathlessness. Allergy and other airway irritants can trigger it
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For the study, the researchers analysed data on 88,304 female teachers and school administrators.
They found that overweight women were 40 percent more likely to have asthma than women of a normal weight.
Asthma was more than twice as likely in obese women, and more than three times as likely in extremely obese women than in those of normal body weight.
![Allergy]( "Allergy")
An allergy is a hypersensitive disorder of immune system. Substances that often cause allergic reactions are pollen, dust mites, mold spores, pet dander, food, insect stings and medicines.
The researchers also found that women of normal body weight, but with a waist circumference of more than 88cm were also at increased risk - around a third higher than those with a smaller waist.
Body mass index (BMI) has been widely used as a standard measure of obesity.
However, some scientists argue that waist circumference may be a more useful measure because it more closely reflects levels of visceral fat deposits found around the body's organs.
Visceral fat is metabolically different from other types of fat found in the body, and may have different - and more profound - effects on health.
"Visceral fat is metabolically more active - it can produce compounds that may cause inflammation. Inflammation may then be related to asthma," the BBC quoted author Julie Von Behren as saying.
The study appears in the journal Thorax.
Source: ANI
RAS
Asthma was more than twice as likely in obese women, and more than three times as likely in extremely obese women than in those of normal body weight.
Allergy
An allergy is a hypersensitive disorder of immune system. Substances that often cause allergic reactions are pollen, dust mites, mold spores, pet dander, food, insect stings and medicines.
Advertisement
The researchers also found that women of normal body weight, but with a waist circumference of more than 88cm were also at increased risk - around a third higher than those with a smaller waist.
Body mass index (BMI) has been widely used as a standard measure of obesity.
However, some scientists argue that waist circumference may be a more useful measure because it more closely reflects levels of visceral fat deposits found around the body's organs.
Visceral fat is metabolically different from other types of fat found in the body, and may have different - and more profound - effects on health.
"Visceral fat is metabolically more active - it can produce compounds that may cause inflammation. Inflammation may then be related to asthma," the BBC quoted author Julie Von Behren as saying.
The study appears in the journal Thorax.
Source: ANI
RAS
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