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Even
a Few Extra Pounds
Can Raise
Disease Risk
By
Suzanne Rostler
NEW YORK (Reuters
Health) - As Americans continue to ''supersize'' their food, spend
more time in front of the computer and TV, and watch the number
on the scale climb steadily higher, a new study highlights the
health hazards of even a few extra pounds.
According
to a report published in the July 9th issue of the Archives of
Internal Medicine, adults who weigh in on the high end of the
healthy range may be at increased risk for a range of chronic
disorders. Not surprisingly, the risks increased with the severity
of weight gain and among the heaviest adults.
The findings
underscore the importance of maintaining a healthy body weight
and suggest that doctors can play an important role, Dr. Alison
E. Field of Brigham and Women's Hospital and Harvard Medical School
in Boston, Massachusetts, and colleagues conclude.
``We observed
that men and women in the upper half of the healthy weight category
(i.e., BMI between 22 and 24.9) are significantly more likely
than adults with lower BMIs to develop numerous health conditions,
suggesting that clinicians should counsel their patients about
how to maintain their weight, or increase their physical activity
levels before they become overweight,'' Field told Reuters Health.
Body mass
index (BMI) takes into account a person's weight in relation to
his or her height. It is calculated by dividing weight (in kilograms)
by height (in meters squared). A person with a BMI of 25 of more
is considered overweight, while someone with a BMI of 30 or over
is considered obese. For example, a person 5' 6'' in height would
need to weigh 155 pounds to have a BMI of 25 and 185 pounds to
have a BMI of 30.
Based on their
findings, the authors recommend that adults try to maintain a
BMI of between 18.5 and 21.9.
In the study
of nearly 124,000 middle-aged men and women, the researchers looked
at the relationship between BMI and risk of developing type 2
diabetes, gallstones, high blood pressure, heart disease, stroke,
colon cancer and high cholesterol over 10 years. Numerous studies
have linked excess body weight with the risk of developing one
or more of these disorders.
Overweight
women, or those with a BMI of 25 to 29.9, were significantly more
likely to develop gallstones, high blood pressure, high cholesterol
and heart disease, results show. Overweight adults were more than
three times as likely to develop type 2 diabetes than their thinner
peers, while very obese adults--those with a BMI above 35--were
about 20 times more likely than healthy-weight adults to develop
diabetes.
What's more,
people not traditionally considered to be overweight--those with
a BMI of 22 to 24.9--were also at greater risk of developing at
least one of the chronic diseases compared with their slimmer
peers.
According
to the study, 32% of adults in the US are overweight and an additional
22.5% are obese. Both adults and children have been gaining weight
steadily over the past three decades--a trend experts expect to
persist.
``The health
implications are enormous,'' Field said. ``As a consequence of
the increasing prevalence of obesity in children, adolescents
and adults, the prevalence of a variety of chronic diseases can
be expected to increase.''
SOURCE:
Archives of Internal Medicine 2001;161:1581-1586.
Reference
Source 89
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