Weight - Weight Management Chapter 9 Prevalence of...

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Weight Management Chapter 9
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Prevalence of overweight ~_________% of adults are overweight Highest among _____________,blacks, and Hispanics, and the poor ~________% of children between 2-19 overweight or “at risk for overweight”
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Figure 9-1 : Increasing prevalence of obesity among US adults
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Enzymes in fat metabolism _________________________________ promotes fat storage; produced by fat cells Women: fat cells in hips, thighs, and breasts produce LPL Men: fat cells in abdomen LPL activity ________________ after weight loss easy to regain weight
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Fat cell development
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Genetic causes of obesity Seems to affect susceptibility to obesity Leptin Ghrelin
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Leptin Acts as hormone Released when food in stomach Suppresses _______________________ Increases _________________________________ In mice, when given IV, reduces fat cell size AND number
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Leptin treatment
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Ghrelin Hormone Levels high before meal; decline in proportion to kcal ingested High levels in underweight Decreased levels after ___________________ Why?
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Sleep and weight Link between short sleep duration and high ____________________ Lack of sleep: Increases ghrelin Decreases leptin
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Environmental causes of obesity: Overeating Diet histories don’t always reflect overeating In our society, high-fat, high-kcal foods:
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This note was uploaded on 10/22/2009 for the course PHYS 110 taught by Professor Mc during the Spring '09 term at University of Delaware.

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Weight - Weight Management Chapter 9 Prevalence of...

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