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Definition of «Obesity»

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Obesity: The state of being well above one's normal weight.

A person has traditionally been considered to be obese if they are more than 20 percent over their ideal weight. That ideal weight must take into account the person's height, age, sex, and build.

Obesity has been more precisely defined by the National Institutes of Health (the NIH) as a BMI of 30 and above. (A BMI of 30 is about 30 pounds overweight.)

The BMI (body mass index), a key index for relating body weight to height, is a person's weight in kilograms (kg) divided by their height in meters (m)squared. Since the BMI describes the body weight relative to height, it correlates strongly (in adults) with the total body fat content. Some very muscular people may have a high BMI without undue health risks.

Obesity is often multifactorial, based on both genetic and behavioral factors. Accordingly, treatment of obesity usually requires more than just dietary changes. Exercise, counseling and support, and sometimes medication can supplement diet to help patients conquer weight problems. Extreme diets, on the other hand, can actually contribute to increased obesity.

Overweight is a significant contributor to health problems. It increases the risk of developing a number of diseases including:

  • Type 2 (adult-onset) diabetes
  • High blood pressure (hypertension)
  • Stroke (cerebrovascular accident or CVA)
  • Heart attack (myocardial infarction or MI)
  • Heart failure (congestive heart failure)
  • Cancer (certain forms such as cancer of the prostate and cancer of the colon and rectum)
  • Gallstones and gall bladder disease (cholecystitis)
  • Gout and gouty arthritis
  • Osteoarthritis (degenerative arthritis) of the knees, hips, and the lower back
  • Sleep apnea (failure to breath normally during sleep, lowering blood oxygen)
  • Pickwickian syndrome (obesity, red face, underventilation, and drowsiness).

For More Information «Obesity»

  • Obesity.org

    The Obesity Society is the leading scientific society dedicated to the study of obesity. Since 1982, The Obesity Society has been committed to encouraging research on the ...

  • obesity: Definition from Answers.com

    Library > Literature & Language > Dictionary ( ō-bē ' sĭ-tē ) n. The condition of being obese; increased body weight caused by excessive accumulation of fat.

  • Obesity and Overweight: Topics | DNPAO | CDC

    CDC's Division of Nutrition, Physical Activity, and Obesity (DNPAO) is working to implement policy and environmental strategies to make healthy eating and ...

  • Obesity: MedlinePlus - National Library of Medicine ...

    Obesity means having too much body fat. It is different from being overweight, which means weighing too much. The weight may come from muscle, bone, fat and/or body ...

  • Obesity (Weight Loss) Complete medical information on this ...

    Read about obesity and being overweight, including the health risks, causes, reviews of weight-loss diet plans, surgical and nonsurgical treatments, and medications for ...

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