Introduction to Obesity
Weighty problem
Gaetan Lafortune, OECD Health Policy Unit
Published: September 2003
Obesity is a growing problem in OECD countries, OECD Health Data 2003 shows. Its prevalence varies from country to country, from a low of 3% of the population in Korea and Japan in 2001, to a high of 31% in the United States in 1999.
The US estimate is based on actual health examinations, while data from most other countries are from self-reporting health surveys. Comparable data from health interview surveys show a lower US figure, though still at 22% in 1999. Similarly, for Australia, the obesity rate based on health examinations conducted in 1999 was 21%, but 18% based on self-reported survey data in 2001.
Still, the outcomes point to a pressing problem. In Australia, obesity has more than doubled and in the United Kingdom the rate has tripled over the last 20 years, based consistently on health examination measures in the two countries. More than 20% of the adult population in Australia and the United Kingdom are now defined as obese, the same rate as in the United States ten years ago. By contrast, the obesity rates in Denmark, Sweden and Norway, as well as France, Italy, the Netherlands and Switzerland remain in the 10% area, according to self-reported data, though obesity rates in these countries have begun to rise.
Obesity is a known risk factor for several disorders, such as diabetes, hypertension, cardiovascular diseases, respiratory problems (asthma) and musculoskeletal diseases (arthritis). It has several causes, too, including excessive calorie consumption, lack of physical activity, genetic predisposition and disorders of the endocrine system of glands that produces the hormones necessary for normal bodily functions, like metabolism and growth.
Culture and environment also influence obesity, like dietary customs or the working environment. A recent study by Lawrence Frank, associate professor of urban planning at the University of British Columbia, even suggests urban sprawl as being a possible factor, as in the suburbs, people tend to drive more and walk less.
The economic and non-economic consequences of obesity are vast. In the United States, a recent study by Roland Sturm looked at the consequences of obesity on medical problems such as diabetes and asthma and related costs, and compared them with other risk factors, like smoking and alcohol consumption (see references). The study found that obesity has the same association with chronic health conditions as does 20 years of ageing, greatly exceeding the association of smoking or excessive drinking for those conditions studied.
It was estimated that obesity is associated with an even higher average health cost increase per year than costs related to smoking. So much so, in fact, that in the US a group of large employers, headed by Ford Motor, Honeywell, General Mills and PepsiCo, announced a campaign this June to encourage overweight workers to slim down as a way to improve both their personal health and the corporate bottom line. Dr Vince Kerr, director of health care management at Ford, says weight-related costs are adding US$12 billion per year to costs of employers across the United States.
One worrying feature for places like Australia and the UK, where obesity has risen since 1980, is that there is a time lag between the onset of obesity and related disorders, suggesting that health problems (and costs) are being stored for the future.
Diet changes and physical exercise can help tackle obesity, although this is easier said than done, particularly as behavioural and environmental barriers are at play. Apart from promoting a healthy lifestyle, preventing obesity in childhood is perhaps a more effective approach in the long term. Effective family-based and school-based programmes can help. So might the law, with several legal battles now being waged against manufacturers and distributors of foods that are accused of contributing to obesity. Other food companies are taking initiatives themselves, with food giant Kraft announcing at the start of July its plan to cut fat and sugar content in its foods.
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How is Obesity Related to Globalisation?
Globalisation is the unitary process inclusive of many sub-processes (such as enhanced economic interdependence, increased cultural influence, rapid advances of information technology, and novel governance and geopolitical challenges) that are increasingly binding people and the biosphere more tightly into one global system. Globalisation and obesity are closely related as globalisation results in obesity of many and yet it is obesity which promotes further globalisation.
Firstly, globalisation leads to the emergence of worldwide food production markets and a wider access to a range of foods for consumers. To be more specific, technological globalisation has made it possible for the spreading of technology to various developed nations around the world. This technology has led to technological advancements in the food industry, making the mass production of highly processed convenience foods possible. Also, cultural globalisation has been a catalyst for the growing of the fast food industry. Cultural globalisation involves the desire of people to consume and enjoy foreign products, adopt new technology and practices, and participate in a "world culture". As the idea of fast food outlets reach people in various nations, their desire to consume and enjoy foreign products results in increased patronization of these outlets, thus accelerating the growth of the fast food industry.
Generally there are three types of food in the market: fresh food, convenience food and lastly fast food. Given these three choices, people from modern cities will tend to choose between convenience food and fast food. This is because due to their busy lifestyles, convenience is key. They do not like to create a mess in their kitchens just to prepare a meal, or they do not have the time to prepare a healthy meal. Moreover, technology has ensured that the convenience food and fast food are prepared in such a way, they are so tasty that their popularity is much higher than that of that fresh food. However, in the process of processing these foods to increase its tastiness, these foods have also been made more unhealthy. When an increasing number of people consume the convenience foods or fast foods, they gain weight and become obese.
However, obesity is not only about eating choices, it is related to lifestyle patterns too. Technological globalisation leads to the increase in information flows between geographically remote locations. The rise of inventions like the Internet, You-tube, Maplestory, Warcraft, Yahoo, Google, Blogger and MSN Messenger has resulted in more time spent in front of the computer. This results in reduced metabolism rate and thus the body will retain fatty acids. The vicious cycle of obesity above mentions that a child first becomes obese by consuming high fat food without exercising, then he think that he is no good at sports and gets easily tired when exercising. When he becomes a moderately obese child, exercising becomes uncomfortable and painful so he stops excerising. As he grows to become an obese adult, he encounter a lot of health problems such as heart problems.
On the other hand, obesity leads to further globalisation. As more and more people become obese, they spend more money to improve their body image, leading to the thriving of slimming agencies. Moreover, there is increased imports of slimming products from various nations due to a higher demand. This results in a boost in the beauty industry in developed nations. Therefore, there is acceleration of economic globalisation due to the increase in trade between nations. The number of slimming agencies in Singapore has increased by 40% from 1985 - 2005. Therefore we can see that the general public is becoming more and more dependent on these slimming technologies. Thus globalisation and obesity are interrelated.
What is its Impact?
For a larger image, please refer to http://en.wikipedia.org/wiki/Image:Bmi30chart.png
The graph above shows the percentage of obese adults aged 15 and above with a BMI >30. The countrys with the lowest percentage of obese adults are Japan and Korea with 3.2% of adults obese. On the other extreme, the US has the highest percentage of obese adults ( 30.6%). This tallies with the article attached above, which mentions that the prevalence of obesity varies from country to country, from a low of 3% of the population in Korea and Japan in 2001, to a high of 31% in the United States in 1999. Not only the US population is suffering from obesity problems; many other developed nations are also facing this pressing problem. In Australia, obesity has more than doubled and in the United Kingdom the rate has tripled over the last 20 years, based consistently on health examination measures in the two countries. More than 20% of the adult population in Australia and the United Kingdom are now defined as obese, the same rate as in the United States ten years ago. By contrast, the obesity rates in Denmark, Sweden and Norway, as well as France, Italy, the Netherlands and Switzerland remain in the 10% area, according to self-reported data, though obesity rates in these countries have begun to rise. Therefore, we can see that obesity indeed is a pressing problem prevalent in many developed nations around the world today.
Now, let us zoom in and take a look at the percentage of obese children and adults in USA over the years. We can see from this chart that there is an increasing percentage of obese US adults and children. In 1960, there is around 5% of overweight children in the US population. 30 - 40 years later, as these obese children become adults, this leads to a sudden jump in the number of obese adults to around 31%. The article above mentions that diet changes and physical exercise can help tackle obesity, although this is easier said than done, particularly as behavioural and environmental barriers are at play. The article mentions that "Apart from promoting a healthy lifestyle, preventing obesity in childhood is perhaps a more effective approach in the long term. Effective family-based and school-based programmes can help. So might the law, with several legal battles now being waged against manufacturers and distributors of foods that are accused of contributing to obesity. "Therefore this proves that obese children, if continue their high fat diets and lack of physical exercise, can lead to obese adults. Also, "Obesity is a known risk factor for several disorders, such as diabetes, hypertension, cardiovascular diseases, respiratory problems (asthma) and musculoskeletal diseases (arthritis). It has several causes, too, including excessive calorie consumption, lack of physical activity, genetic predisposition and disorders of the endocrine system of glands that produces the hormones necessary for normal bodily functions, like metabolism and growth." Eventually health costs for these obese adults will skyrocket and stand a huge part of the US economy.
My Reflections
I think that today obesity has transformed to be an aspect of globalisation. Obesity was once regarded as a symbol of fertilty, strength and wealth in certain traditions. Then it is commonly associated with negative stereotypes such as laziness and clumsiness. However, today it has taken on another new identity. In my opinion, obesity has become an imprint which globalisation has left in developed nations. This is because, with technological and cultural globalisation, there is a wider variety of food available for consumers to choose from. This choosiness of food, together with an unhealthy lifestyle, eventually leads to obesity. Therefore as a Health Expert, I strongly believe that if people from developed nations do not undergo a change in their lifestyles for a healthier one, health costs will eventually stand a large proportion in the world's economy.
While one side of the world is worrying about obesity problems, the other side of the world is worrying about hunger. Although the impact on globalisation in nations is very huge, it does not reach every end of Earth. It only impacts heavily on developed nations. On the other hand, third world nations are facing food insecurity.
Food security for a household means access by all members at all times to enough food for an active, healthy life. Food security includes at a minimum: the ready availability of nutritionally adequate and safe foods, and an assured ability to acquire acceptable foods in socially acceptable ways (that is, without resorting to emergency food supplies, scavenging, stealing, or other coping strategies).
This boy is suffering from hunger, yet he is also suffering from the indignity of being covered in flies.
While American kids are undergoing weight control, children are dying of starvation in feeding centers in Niger, where 3.6 million people face severe food shortages. Food insecurity there is caused by poverty, population, piorities and politics. The underprivilleged are always hungry. Population growth is very high (around 20%), thus resulting in the shortage of food to feed the entire population. The rich often get their foodstuff first. Moreover, political forces influence the availability of food as food is often used as 'money' to pay off debts to first world countries. Thus we can see that globalisation does not necessarily affect every single corner of the world.
Globalisation brings us a lot of benefits, but have we stopped to think if poor nations receive the same benefits as the first world countries? The answer is no. Globalisation brings about increased economic interdependence, cultural influence, rapid advances in IT, and novel governance and geopolitical challenges that are increasingly binding people into one global system. However, this does not seem like the case for third world countries. Globalisation does not really have any effect on them, be it political, economic, cultural, technological and environmental. Therefore I think that to reduce food insecurity, first world countries have to first help third world countries by lending loans to them, so that they can produce more food. With a stronger workforce, these countries will then have the capability to participate in world trade. Third world countries can later return these loans to first world countries through yearly instalments. With the participation of third world countries in world trade, each nation is bound to benefit. In this way, globalisation will then have a fairer impact on countries. There will no longer be extremes in food security problems.
Yours,
The Environmental & Health Expert
serene!