Obesity_Presentation_BSCI425_S2010.ppt

Obesity_Presentation_BSCI425_S2010.ppt - 4/25/10 2006...

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4/25/10 1 The Economist, Dec 13-19, 2003 2006 American Cancer Society Survey 83% of Americans know that excess weight increases risk of heart attack 57% of Americans know that excess weight increases risk of diabetes Only 17% of Americans know that excess weight increases risk of cancer Nutrition Action Healthletter, Sep, 2007 Obesity Epidemic • In 2001, the US Surgeon General declared an obesity epidemic • Surgeon General Report stated that in the U.S., approximately 300,000 deaths per year are associated with obesity and being overweight • This compares to approximately 400,000 deaths a year from cigarette smoking Obese vs. Overweight Obesity means having too much body fat Overweight means weighing too much Excess weight may come from muscle, bone, fat and/or water retention • Both terms mean that a person's weight is greater than what's considered healthy for his or her height
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4/25/10 2 Body Mass Index (BMI) Measure of adult’s weight in relation to his or her height Adult’s weight in kilograms divided by the square of his/her height in meters Overweight = BMI of 25-30 Obese = BMI of > 30 Very high amount of body fat in relation to lean body mass Obesity • Obesity occurs over time when more calories are consumed than are burned • Balance between calories-in and calories-out differs for each person • Factors that might tip the balance include: Metabolic activity Genetic makeup Overeating Eating high-fat foods Physical inactivity Obesity: A Worldwide Issue Obesity Health Risks Cancer Diabetes Hyper- tension Gall- bladder Disease Kidney Failure Stroke Heart Failure Athero- scleroris
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4/25/10 3 Obesity Trends Among U.S. Adults (BRFSS * ) No Data <10% 10%–14% 15%–19% 20%–24% 25%–29% 30% 1995 1990 2005 CDC’s * Behavioral Risk Factor Surveillance System
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Obesity_Presentation_BSCI425_S2010.ppt - 4/25/10 2006...

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