Chapter 9 Part 1.pptx

Hormone leptin secreted by the bodys fat cells and

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Hormone Leptin secreted by the body’s fat cells and tells the brain about the body’s fat stores. On the basis this information brain regulate appetite and metabolic rate. Effect of Hypothyroidism
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9-14 Lifestyle Factors Most important factor responsible for continuous increase in rate of obesity: Eating behavior, physical activity level, and Psycho-social factor Eating Behavior Eat out more frequently. Access to plenty of calorie dense food(high fat – high carb - high calorie food). In a study, participants underestimated their calorie intake by 600 calories (for last 24 hours) Larger portion size: People underestimate portion sizes by as much as 25%.
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9-16 Lifestyle Factors Physical activity Decline in physical activity level in all age group. Drive to work, sit all day, and relax in front of TV. On average, Americans watch 170 minutes of TV and movies each day Less than 5 % of American adults participate in daily physical activity for at least 30 minutes
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Psycho-social factors Stress Management : Many people use eating as a Coping strategy against negative emotions (loneliness, anger, low energy, low self esteem, anxiety, sadness etc.) This type of behavior can cause can develop eating disorder (like Binge eating) . Prevalence of obesity also affected by Socio-economic status. It goes down as income level goes up especially for women and children. Sensitivity and access to information 9-17
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Treating obesity: Adopting Healthy lifestyle for life long. Slow weight gain is the major cause of overweight and obesity. Changing Diet and eating habits Total calorie, portion sizes, energy density. Increasing Physical activity level Improving coping strategies (Thoughts and emotions) 9-18
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9-19 Diet and Eating Habits Total calories USDA suggests approximate daily energy intakes based on gender, age, and activity level. Key component is the individualized energy balance . The best approach for weight loss is to combine increase physical activity with moderate restriction in calorie intake .
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  • Fall '19
  • overweight and obesity

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