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Obesity in America

Selected Research and Commentary

The Brain's Role in Obesity; Subconscious Food Triggers — Jun. 3, 2008

old couple eating same piece of fruit

In the past thirty years obesity has become a global epidemic, largely due to an environment of increasingly accessible high-calorie food, which triggers ten pathways in the brain that lead to overeating without our awareness.

Eating as an Automatic Behavior — Dec. 18, 2007

Man eating donut

Conventional wisdom maintains that preventing obesity should be as simple as providing the right nutritional information and motivation. But a more effective approach is to decrease the accessibility, visibility and quantities of food to which people are exposed and reduce the environmental cues that promote eating.

How Neighborhoods Can Reduce the Risk of Obesity — Jun. 14, 2007

People jogging in park

As the obesity epidemic worsens, researchers are zeroing in on environmental factors that may contribute to the problem or, conversely, help to prevent it. It is increasingly clear that neighborhoods play an important role in stimulating exercise and reducing the risk of obesity.

School Playgrounds Untapped Resource in Fight Against Childhood Obesity — Apr. 19, 2007

Girls on playground

School playgrounds and athletic facilities can be important tools in the fight against childhood obesity, but many are locked and inaccessible to children on weekends – especially in poor and minority neighborhoods.

Severely Overweight Are Fastest Increasing Group of Obese Americans — Apr. 9, 2007

Obese man measuring stomach

The proportion of Americans who are severely obese — about 100 pounds or more overweight — increased by 50 percent from 2000 to 2005, twice as fast as the growth seen in moderate obesity.

Marketing is Making Us Fat — Mar. 7, 2007

grocery store

After two decades of accelerating rates of obesity, coupled with the inability of most people to lose weight and keep it off, it's clear people are being manipulated to overeat, writes Deborah Cohen.

A Desired Epidemic: Obesity and the Food Industry — Feb. 21, 2007

woman eating candybar

[T]ransforming people with drugs, weight-loss surgery, genetic engineering, hypnosis and other extreme steps is not the answer to obesity, because people are not the problem. The problem is the food industry, writes Deborah Cohen.

Flooded with Food — Jan. 07, 2007

Boy drinking soda

Most people believe weight gain and obesity are simply the result of individual choices. They're wrong. The choices we make depend on a variety of environmental cues, many of which we can't control, writes Deborah Cohen.

Adolescent Asian Immigrants Improve Health Habits; Latinos' Nutrition Worsens — Dec. 5, 2006

Asian teen on scale

Good health habits of adolescent Asian immigrants improve with each generation born in the United States, but health habits among adolescent Latino immigrants generally remain poor or become worse in succeeding generations.

Neighborhood Parks Associated with More Physical Activity in Adolescent Girls — Nov. 6, 2006

Teenage girls rollerblading

Adolescent girls who live within one-half mile of a public park are significantly more physically active than other girls. Parks with amenities such as basketball courts, playgrounds and walking paths were associated with more physical activity than parks with picnic areas and lawn games.

School Proximity Affects Physical Activity Among Middle School Girls — Jul. 16, 2006

Sixth grade girls who lived farther away from school tended to get less physical activity, with the most negatively affected girls living more than 5 miles from school. Time spent commuting could explain reduced time for physical activity.

Middle-Aged Americans Less Healthy Than English Counterparts — May 2, 2006

Blood Pressure

Americans ages 55 to 64 suffer from diseases such as diabetes, high-blood pressure and lung cancer at rates up to twice those seen among similar aged people in England. Obesity is more common in the U.S. and Americans get less exercise.

Childhood Overweight and Elementary School Outcomes — Mar. 31, 2006

Becoming overweight during the first four years of school was strongly associated with lowered test scores among girls. Boys who became overweight had more absences from school compared to boys who remained normal weight.

Close-Knit Neighborhoods May Help Prevent Childhood Obesity— Feb. 9, 2006

child getting help from adult

Adolescents living in close-knit neighborhoods where adults provide social support - such as watching out for youngsters and seeking to correct their misbehavior - are half as likely to be overweight or nearly overweight as other children.

Food Prices Linked to Weight Gain in Children — Oct. 5, 2005

Childhood Obesity

Young school-age children who live in communities where fruits and vegetables are expensive are more likely to gain excessive amounts of weight than children who live in areas where fruits and vegetables cost less.

Obese Breast Cancer Patients Are Often Undertreated — Jun. 15, 2005

Overweight women are 20 percent more likely than thin women to receive lower doses of chemotherapy than a size-based formula would indicate they need. Doctors concerned about administering high doses of chemotheraphy may lessen the dosage to avoid toxic side effects.

Surgery More Effective than Diet and Exercise for Severely Obese People — Apr. 6, 2005

woman eating

Weight loss surgery helps severely obese people lose more weight than dieting and exercise alone. People who undergo such surgery typically lose about 45 to 65 pounds and maintain their lower weight for 10 years or longer.

Childhood Obesity—What We Can Learn From Existing Data on Societal Trends — Mar. 23 2005

The number of overweight and obese youth has increased in recent decades, and numerous theories on causes have been proposed. Yet almost no data are available to assess how the lives of children have changed during the “obesity epidemic.” This two-part report looks at recent trends.

Suburban Sprawl Linked to Chronic Health Ailments — Sep. 27, 2004

Suburban sprawl is linked to the incidence of many chronic health ailments, according to the first study that analyzes suburban sprawl and a broad range of chronic health conditions.

Phys Ed Cuts Number of Overweight Young Girls — Aug. 27, 2004

Increasing physical education instruction in kindergarten and first grade by as little as one hour per week could reduce the number of overweight 5- and 6-year-old girls nationally by as much as 10 percent.

Cost for Obesity Growing Dramatically — Mar. 9, 2004

cost of obesity

If obesity continues rising at its current rate in the U.S., by 2020 about one in five health care dollars spent on people ages 50-69 could be consumed by obesity-related medical problems.

Disability Rates Rise, Link to Obesity — Jan. 8, 2004

wheelchair

The obesity epidemic caused disability rates to rise sharply in the last two decades among Americans younger than 60, a trend that could have severe consequences for the nation’s future health costs.

The McLawsuit: The Fast-Food Industry and Legal Accountability for Obesity

Recent litigation brought by a group of overweight children against the McDonald's Corporation that seeks compensation for obesity-related health problems has provoked an intense public response. This paper considers the reasonableness of the claims against fast-food companies and discusses several social effects that the litigation may have irrespective of its outcome in court.

Childhood Overweight Status and Academic Performance

A national U.S. study of 11,192 kindergartners found that academic achievement in kindergarten and first grade are not directly associated with children's overweight status in kindergarten. In general, race/ethnicity and mother's education were stronger predictors of academic performance than children's overweight status.

Clinically Severe Obesity On the Rise in the U.S.

The proportion of Americans who suffer from clinically severe obesity -- defined as those who are 100 or more pounds overweight -- is rising twice as fast as the proportion of those who are simply obese.

Three of Five Adult Americans Are Overweight or Obese

This study examines the comparative effects of obesity, smoking, heavy drinking, and poverty on chronic health conditions and health expenditures. It finds that obesity is the most serious problem, linked to a increases in chronic health conditions and significantly higher health expenditures.

Are Americans Are Getting Fatter? Does It Matter?

A synthesis of RAND research on the health risks of obesity in America. Originally published as a resource for state and federal legislators.

Health Talk: Obesity

Washington Post columnist Abigail Trafford discusses obesity and public health strategies to stem the epidemic with RAND's Roland Sturm.

Alternative Treatments for Weight-Loss

"Nontraditional" or "alternative" products are extremely popular for weight loss. This study reviews existing data on 18 products and methods advocated as potential anti-obesity or fat-reducing agents. None were found to be safe and effective in two or more peer-reviewed publications.

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