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Challenging Obesity: The science behind the issues / Edition 4

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Overview

Food is one of the greatest pleasures of life. For many, more especially in the developed world, overindulgence and a less active lifestyle have generated the so-called epidemic of obesity. Despite this, many societies place great emphasis on a perfect, slim body shape and may discriminate against those who are overweight. There are strong individual differences in body weight, and hardly a month goes by without the announcement of yet another gene 'for' obesity, with discussion of the implications of those who hope to reduce their body weight, How should individuals and governments respond to the different challenges of obesity?
The book takes a multidisciplinary approach, beginning with a broad overview of issues, then moving to an examination of the biological and psychological aspects of eating behavior and exercise, and their implications for overall energy balance. These early chapters include a description of human nutrition and physiology, particularly in relation to adipose tissue, and an examination of the way in which the brain receives information from the rest of the body about likely energy needs. One of the most important questions about obesity is why some individuals are so much heavier than others. Here, the books looks at thte contributions from genetics, development, and influences from the social environment - and the complex way in which these may interact.

Obesity increases the risk of ill health. Later chapters examine the dieases that are associated with obesity, the discrimination experienced and its effects on socio-economic status and psychological wellbeing. Obesity is often associated with recurrent efforts to lose weight. We discuss the different strategies that individuals may use to lose weight, from diet and exercise though to more medically oriented options including surgery and drug treatment. None of these methods has a good record of success and may also incur harmful side effects; these problems are addressed, together with the research that might overcome them. The book concludes by examining how governments, and others, might develop policies that respond to the challenge of overcoming the obesity epidemic.

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Product Details

  • ISBN-13: 9780199563371
  • Publisher: Oxford University Press, USA
  • Publication date: 12/15/2008
  • Edition number: 4
  • Pages: 256
  • Product dimensions: 8.20 (w) x 10.20 (h) x 0.70 (d)

Meet the Author

Heather McLannahan is a Senior Lecturer in Health Studies at The Open University. She followed her postgraduate studies at Oxford with a Lectureship at Liverpool University and then worked on sea-bird behaviour, including feeding behaviour, at the Institute of Terrestrial Ecology in Norwich and gave undergraduate lectures at UEA until a further family move to the Lake District forced a career break. Here she discovered distance learning and became an OU Associate Lecturer, subsequently joining the full-time staff in 1988. Since then she has written about 20 chapters in books for OU courses, many of them co-published. Most recently she was academic editor and chapter author for the Science Faculty's most popular intermediary undergraduate course, Human Biology and has just completed the copublished undergraduate title Visual Impairment: A Global View (copublished with Oxford University Press, 2008, ISBN 978-0199237319) to which she has been the major contributor and academic editor.

Pete Clifton is Professor of Psychology at the University of Sussex and is also an Associate Lecturer with The Open University. He teaches biological psychology, with a particular focus on eating and obesity, to undergraduates in psychology and to medical students within the Brighton and Sussex Medical School. He is author of about 70 book chapters and journal articles. His research is in the area of feeding and body weight, with a particular emphasis on the relevant neural and behavioural mechanisms.

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Table of Contents

1. A GLOBAL CHALLENGE
Introduction What is obesity?
Measuring obesity The relationships between obesity and ill health The economic cost of obesity Who is most likely to become obese?
Why have so many people become overweight and obese?
Summary of Chapter 1
2. ENERGY: INTAKE AND NEEDS
Introduction Energy intake What is a balanced diet?
The chemical nature of macronutrients Measuring energy intake Releasing energy from food Energy expenditure Controlling weight Summary of Chapter 2
3. FOOD: DIGESTION AND ABSORPTION
Introduction The digestive system The fate of food as it passes along the gut Absorption and distribution of fuel molecules Summary of Chapter 3
4. METABOLISM: THE BODY'S INTERNAL BALANCING ACT
Introduction Metabolism, homeostasis and a healthy balance Insulin and the regulation of blood glucose levels Creating an energy reserve: longer-term storage and use of lipids Insulin resistance Roles of adipose tissue Consolidation Summary of Chapter 4
5. BRAIN AND BEHAVIOUR
Introduction The 'eating' brain: a quick introduction Hunger Satiety Brain mechanisms and feeding behaviour Summary of Chapter 5
6. INDIVIDUAL DIFFERENCES: GENES AND ENVIRONMENT
Introduction Genes and obesity Environment and obesity Gene-environment interactions and obesity Factors affecting childhood obesity Pregnancy Epilogue Summary of Chapter 6
7. THE CONSEQUENCES OF OBESITY
Introduction The medical consequences of obesity Psychosocial consequences of obesity Summary of Chapter 7
8. TREATING OBESITY: DIET, EXERCISE AND LIFESTYLE
Introduction Energy balance revisited Reducing energy intake: 'going on a diet'
Exercise as a treatment strategy for obesity Combining exercise and diet Lifestyle and body weight Childhood obesity Summary of Chapter 8
9. TREATING OBESITY: DRUGS AND SURGERY
Introduction Drug treatments for obesity Surgical treatment of obesity Summary of Chapter 9
10. CHALLENGING OBESITY: THE FUTURE
Introduction The obesogenic environment Obesity and government Evaluating policies to reduce the incidence of obesity Combating obesity: what policies would be effective?
Conclusion Summary of Chapter 10
ANSWERS AND COMMENTS
REFERENCES AND FURTHER READING

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