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Causes of Morbid Obesity Obesity
results from consuming more calories than the body uses. Genetic and
environmental factors influence body weight, but precisely how they
interact to determine a person's weight is still unclear. One
proposed explanation is that body weight is regulated around a set
point, similar to a thermostat setting. A higher-than-normal set
point may explain why some people are obese and why losing weight
and maintaining weight loss are difficult for them.
Genetic Factors: Recent research suggests that on the
average, the genetic influence contributes to about 33 percent of
body weight, but the contribution may be more or less in a
particular person.
Socioeconomic Factors: Such factors strongly influence
obesity, especially among women. In the United States, obesity is
more than twice as common among women in lower socioeconomic groups
as among women in higher ones. Why socioeconomic factors have such a
strong influence on women's weight is not fully understood, but
sanctions against obesity do increase with increasing social status.
Women in higher socioeconomic groups have more time and resources
for the dieting and exercise that enable them to conform to these
social demands.
Psychological Factors: Emotional disturbances, once
considered an important cause of obesity, are now considered a
reaction to the strong prejudice and discrimination against obese
people. One type of emotional disturbance, a negative body image, is
a serious problem for many young obese women. It leads to extreme
self-consciousness and discomfort in social situations.
What is
Morbid Obesity?
Obesity is a disease that affects nearly one-third of the adult
American population (approximately 60 million). The number of
overweight and obese Americans has continued to increase since 1960,
a trend that is not slowing down. Today, 64.5 percent of adult
Americans (about 127 million) are categorized as being overweight or
obese. Each year, obesity causes at least 300,000 excess deaths in
the U.S., and healthcare costs of American adults with obesity
amount to approximately $100 billion.
Obesity is
the second leading cause of unnecessary deaths.
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Despite its toll taken
in death and disability, obesity does not receive the attention
it deserves from government, the health care profession or the
insurance industry.
- Research is severely limited by a
shortage of funds.
- Inadequate insurance coverage limits
access to treatment.
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Discrimination and
mistreatment of persons with obesity is widespread and often
considered socially acceptable.
Severe obesity has long-term effects
on you and others
Fact: Mortality risks
associated with severe obesity have been estimated at 6 to 12 times
greater than that of a normal-weight population.
Source: Kenler, et al, American Journal of Clinical Nutrition
Obesity and Children
Today's youth are considered the most inactive generation in history
caused in part by reductions in school physical education programs
and unavailable or unsafe community recreational facilities. In the
U.S., only the state of Illinois requires daily physical education
for students in grades K to 12.
Many adverse health effects associated with overweight are observed
in children and adolescents. Overweight during childhood and
particularly adolescence is related to increased morbidity and
mortality in later life.
Many parents are rightly concerned about their child's weight and
how it affects them. They look for specific answers for prevention
and treatment options. Unfortunately, the state of the science is a
lot less precise than we would like. Are kids too concerned about
their weight? What are the best strategies for prevention? What
treatments work over a long time? Researchers are trying to answer
those and many other questions. In many cases, common sense works
well.
In situations where there are serious health, psychological or
social problems, parents should seek out the best possible advice.
Obesity in children and adolescents is a serious issue with many
health and social consequences that often continue into adulthood.
Implementing prevention programs and getting a better understanding
of treatment for youngsters is important to controlling the obesity
epidemic.
The percentage of children and adolescents who are overweight and
obese is now higher than ever before. Poor dietary habits and
inactivity are reported to contribute to the increase of obesity in
youth.
Causes of
Morbid Obesity in Children
There are many factors that contribute to causing child and
adolescent obesity - some are modifiable and others are not.
Modifiable causes include:
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Physical Activity - Lack
of regular exercise.
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Sedentary behavior - High
frequency of television viewing, computer usage, and similar
behavior that takes up time that can be used for physical
activity.
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Socioeconomic Status - Low
family incomes and non-working parents.
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Eating Habits -
Over-consumption of high-calorie foods. Some eating patterns
that have been associated with this behavior are eating when not
hungry, eating while watching TV or doing homework.
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Environment - Some factors are
over-exposure to advertising of foods that promote high-calorie
foods and lack of recreational facilities.
Non-changeable causes include:
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Genetics - Greater risk of
obesity has been found in children of obese and overweight
parents.
Prevalence and Identification
About 15.5 percent of adolescents (ages 12 to 19) and 15.3 percent
of children (ages 6 to 11) are obese. The increase in obesity among
American youth over the past two decades is dramatic, as shown in
the tables below.
Table 1.
Prevalence of Obese Children
(Ages 6 to 11) at the
95th percentile of
Body Mass Index (BMI)
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1999 to 2000 |
15.3% |
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1988 to 1994 |
11% |
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1976 to 1980 |
7% |
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Table 2.
Prevalence of Obese Adolescents
(Ages 12 to 19) at the
95th percentile of
Body Mass Index (BMI) |
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1999 to 2000 |
15.5% |
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1988 to 1994 |
11% |
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1976 to 1980 |
5% |
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A
measurement called percentile of Body Mass Index (BMI) is used to
identify overweight and obesity in children and adolescents. The
Centers for Disease Control (CDC), the supplier of national growth
charts and prevalence data, avoids using the word "obesity" for
children and adolescents. Instead, they suggest two levels of
overweight: 1) the 85th percentile, an "at risk" level,
and 2) the 95th percentile, the more severe level.
The American Obesity
Association uses the 85th percentile of BMI as a
reference point for overweight and the 95th percentile
for obesity.
Prevention
of Morbid Obesity in Children
Teaching
healthy behaviors at a young age is important since change becomes
more difficult with age. Behaviors involving physical activity and
nutrition are the cornerstone of preventing obesity in children and
adolescents. Families and schools are the two most critical links in
providing the foundation for those behaviors.
Families coping with Morbid Obesity in Children
Parents are the most important role models for children. Results
from an American Obesity Association survey show that:
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The majority of parents in
the U.S. (78 percent) believe that physical education or recess
should not be reduced or replaced with academic classes.
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Almost 30 percent of
parents said that they are "somewhat" or "very" concerned about
their children's weight.
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12 percent of parents
considered their child overweight.
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Comparing their own
childhood health habits to their children's, 27 percent of
parents said their children eat less nutritiously, and 24
percent said their children are less physically active.
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35 percent of parents
rated their children's school programs for teaching good
patterns of eating and physical activity to prevent obesity as
"poor," "non-existent," or "don't know."
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Among six choices of what
they believed to be the greatest risk to their children's
long-term health and quality of life, 5.6 percent of parents
chose "being overweight or obese." More parents selected other
choices as the greatest risk: alcohol (6.1 percent), sexually
transmitted disease (10 percent), smoking (13.3 percent),
violence (20.3 percent), and illegal drugs (24 percent).
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In terms of their own
behavior, 61 percent of parents said that it would be either
"not very difficult" or "not at all difficult" to change their
eating and/or physical activity patterns if it would help
prevent obesity in any of their children.
Create an Active Environment:
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Make time for the entire
family to participate in regular physical activities that
everyone enjoys. Try walking, bicycling or rollerblading.
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Plan special active
family-outings such as a hiking or ski trip.
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Start an active
neighborhood program. Join together with other families for
group activities like touch-football, basketball, tag or
hide-and-seek.
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Assign active chores to
every family member such as vacuuming, washing the car or mowing
the lawn. Rotate the schedule of chores to avoid boredom from
routine.
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Enroll your child in a
structured activity that he or she enjoys, such as tennis,
gymnastics, martial arts, etc.
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Instill an interest in
your child to try a new sport by joining a team at school or in
your community.
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Limit the amount of TV
watching.
Create a Healthy Eating Environment:
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Implement the same healthy
diet (rich in fruits, vegetables and grains) for your entire
family, not just for select individuals.
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Plan times when you
prepare foods together. Children enjoy participating and can
learn about healthy cooking and food preparation.
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Eat meals together at the
dinner table at regular times.
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Avoid rushing to finish
meals. Eating too quickly does not allow enough time to digest
and to feel a sense of fullness.
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Avoid other activities
during mealtimes such as watching TV.
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Avoid foods that are high
in calories, fat or sugar.
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Have snack foods available
that are low-calorie and nutritious. Fruit, vegetables and
yogurt are some examples.
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Avoid serving portions
that are too large.
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Avoid forcing your child
to eat if he/she is not hungry. If your child shows atypical
signs of not eating, consult a healthcare professional.
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Limit the frequency of
fast-food eating to no more than once per week.
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Avoid using food as a
reward or the lack of food as punishment.
Health Risks, Diagnosis and
Treatment
Determining if a child or
adolescent has a weight problem can be challenging. How do you know
if the excess weight your child has is part of the natural growth
process, and will your child just "grow out of?" How do you know if
your child's weight may be negatively affecting his or her health?
Health Risks of Morbid Obesity
Along with the rise in
childhood obesity, there has been an increase in the incidence and
prevalence of medical conditions in children and adolescents that
had been rare in the past. Pediatricians and childhood obesity
researchers are reporting more frequent cases of obesity-related
diseases such as type 2 diabetes, asthma and hypertension that once
were considered adult conditions.
Diagnosing Morbid Obesity
There are some signs that may
help you determine if your child has or is at risk for childhood
obesity, such as:
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Family history of obesity.
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Family history of
obesity-related health risks such as early cardiovascular
disease, high cholesterol, high blood pressure levels, type 2
diabetes.
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Family history of
cigarette smoking and sedentary behaviors.
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Signs in the child of
obesity-related health risks from a pediatrician's evaluation
including:
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Cardiac Risk Factors.
Studies of children with obesity show higher than average
blood pressure, heart rate and cardiac output when compared
to children without obesity.
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Type 2 Diabetes Risk
Factors. This involves glucose intolerance and insulin
levels that are higher than average.
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Orthopedic Problems.
Some symptoms include weight stress in the joints of the
lower limbs, tibial torsion and bowed legs, and slipped
capital femoral epiphysis (especially in boys).
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Skin disorders. Some
are heat rash, intertrigo, monilial dermatitis and
acanthosis nigricans.
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Psychological /
Psychiatric Issues. Poor self-esteem, negative self-image,
depression, and withdrawal from peers have been associated
with obesity.
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Patterns of sedentary
behavior (such as too much television viewing) and low physical
activity levels.
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Taller height - children
with obesity are often above the 50th percentile in height.
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Smoking initiation.
Research studies show that youngsters use smoking as a method of
weight control. Parents, pediatricians and schools should work
together to discourage smoking as a weight control behavior for
three main reasons: a) smoking is not likely to be successful in
controlling weight, b) smoking is itself harmful, and c) smoking
is associated with a decrease in sound nutrition and physical
activity patterns.
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