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All information about obesity morbid obesity central obesity body mass index (BMI) causes of obesity health risks associated with obesity measurement of obesity obesity risk factors treatment of obesity obesity diet obesity exercise behavior therapy (physical activity) for obesity obesity medications obesity surgery childhood obesity

What is the body mass index (BMI)?

The body mass index (BMI) is a mathematical formula that uses your weight and height information to calculate your body mass. Note that it does not determine your actual body fat percentage, however. Body fat is exceedingly difficult to measure, as the most accurate method involves weighing a person underwater. As a result, BMI is simply the most practical standardized way to evaluate weight.

Your BMI is your body weight in kilograms is divided by the square of your height in meters ([weight in kg] ?[height in meters]2). The resulting number generally indicates the extent of one's obesity, as well as the degree of risk for weight-related complications.

Those in the last category (BMI > 40) can qualify for weight loss surgery according to NIH guidelines. In addition, the guidelines also allow for surgery for those with a BMI > 35 when accompanied by significant co-morbidities such as diabetes, hypertension, cardiovascular disease, and high cholesterol.

At her heaviest point, Carnie Wilson weighed 298 pounds. Being only 5'4" tall, that resulted in a BMI of 51. The BMI weight categories generally do not apply to pregnant or nursing women, competitive athletes, or body builders. These individuals may have a high BMI without necessarily having elevated health risks. Also, the BMI calculator is not designed for growing children or the elderly.

More information on obesity

What is obesity? - Obesity is a condition in which the natural energy reserve of a mammal. In humans, the current measurement of obesity is the body mass index (BMI).
What is morbid obesity? - Morbid obesity is clinically severe obesity or extreme obesity.
What is central obesity? - Central obesity (or 'apple-shaped' or 'masculine' obesity), is when the main deposits of body fat are localised around the abdomen and the upper body.
What is the body mass index (BMI)? - The body mass index (BMI) is a mathematical formula that uses your weight and height information to calculate your body mass.
What causes obesity? - Genetic, environmental, psychological, and other factors may all play a role in the development of obesity.
What're health risks associated with obesity? - Obesity has been linked to several serious medical conditions including: insulin resistance, heart disease and stroke, high blood pressure, type 2 (adult-onset) diabetes, cancer, gallbladder disease and gallstones.
How obesity is measured? - A number of tools are available to measure obesity. Most are based on height and weight ratios, body size and shape, and percent body fat.
How common is obesity? - Most health professionals say that obesity is an epidemic. Obesity in the adult population has doubled since 1980.
What's the treatment of obesity? - The mainstay of treatment for obesity is an energy-limited diet and increased exercise.
What's the dietary therapy for treatment of obesity? - Dietary therapy involves instruction on how to adjust a diet to reduce the number of calories eaten. Reducing calories moderately is essential to achieve a slow but steady weight loss, which is also important for maintenance of weight loss.
What's the exercise therapy (physical activity) for obesity treatment? - The primary goal of this therapy is to move sedentary people into an active category (even if it is moderate levels of intensity) and to move moderate level individuals into more vigorous levels.
What's the behavior therapy (physical activity) for obesity treatment? - Behavior therapy involves changing diet and physical activity patterns and habits to new behaviors that promote weight loss.
What about the drug therapy for obesity treatment? - Drug therapy may be used for weight loss and weight maintenance. Patients should be regularly assessed to determine the effect and continuing safety of a drug.
What about obesity surgery? - Obesity surgery is used to modify the stomach and or intestines to reduce the amount of food that can be eaten.
What's childhood obesity? - Obesity in children and adolescents is a serious issue with many health and social consequences that often continue into adulthood.
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All information is intended for reference only. Please consult your physician for accurate medical advices and treatment. Copyright 2005, health-cares.net, all rights reserved. Last update: July 18, 2005