hunger13: september 2007

søndag den 30. september 2007

U.S. Obesity Trends 1985–2006

During the past 20 years there has been a dramatic increase in obesity in the United States. This slide set illustrates this trend by mapping the increased prevalence of obesity across each of the states.

In 2006, only four states had a prevalence of obesity less than 20%. Twenty-two states had a prevalence equal or greater than 25%; two of these states (Mississippi and West Virginia) had a prevalence of obesity equal to or greater than 30%.

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mandag den 17. september 2007

national health objectives

Although one of the national health objectives for the year 2010 is to reduce the prevalence of obesity among adults to less than 15%, current data indicate that the situation is worsening rather than improving. This site provides a variety of information designed to help people understand this serious health issue and the efforts being made to address it.

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mandag den 3. september 2007

diseases and health conditions

These increasing rates raise concern because of their implications for Americans’ health. Being overweight or obese increases the risk of many diseases and health conditions, including the following:

Hypertension
Dyslipidemia (for example, high total cholesterol or high levels of triglycerides)
Type 2 diabetes
Coronary heart disease
Stroke
Gallbladder disease
Osteoarthritis
Sleep apnea and respiratory problems
Some cancers (endometrial, breast, and colon)

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Obesity

Obesity is when a person is carrying too much body fat for their height and sex. A person is considered obese if they have a Body Mass Index (BMI) - weight in kilograms divided by their height in meters squared - of 30 or greater. Obesity can happen when you eat more calories than you burn off over a period of time.
The rate at which you burn off calories from food and drink is known as your metabolic rate. This is often faster during growth spurts and puberty, but reaches a fairly steady rate by adulthood.
People who are very active generally have a higher metabolic rate than those who are inactive because they burn off calories faster through energetic activity. For example, a labourer working on a building site may need as many as 4,000-5,000 calories a day to keep an even weight. In contrast, an office worker who uses a car to get to work, and does not exercise, may only need 1,500 calories a day.
If the amount of calories provided by your daily food intake is more than the calories that you burn off, your body will store the extra energy as fat. This is the body's way of protecting itself in case of starvation. However, starvation in developed countries is extremely rare, and this insurance against 'hard times' is hardly ever needed.
Most of us have more food than we need, and much of it is higher in calories than the human body was originally designed to cope with. Fast foods, high calorie snacks, and large portions all mean it is easy to take in more energy than we need. Obesity has now become one of the most serious medical problems of the western world.

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