Obesity

Supercenters may be supersizing Americans

Health professionals have spent years trying to pinpoint the sources of America's rising obesity levels, but research by University of Virginia Professor Christopher Ruhm suggests it might be time to look beyond the usual ...

Aug 03, 2016
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Diabetes drug may also offer vascular protection

Obesity and Type 2 diabetes are associated with vascular stiffening and the development of cardiovascular disease. Obese and diabetic premenopausal women are most at risk - even more than men of the same age who have similar ...

Aug 18, 2016
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From fat to fit—at what cost?

Kiwis could weigh in as the fattest country in the world in the next five years, with around one third of adults classed as obese. New Zealand has reached a crucial tipping point in how we handle such a rapidly growing health ...

Aug 01, 2016
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Researchers develop new framework for human nutrition

Existing models for measuring health impacts of the human diet are limiting our capacity to solve obesity and its related health problems, claim two of the world's leading nutritional scientists in their newest research.

Aug 01, 2016
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Discovery of a brain sugar switch

Researchers at Technical University of Munich discovered that our brain actively takes sugar from the blood. Prior to this, researchers around the world had assumed that this was a purely passive process. An international ...

Aug 12, 2016
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Stepwise program can reduce diabetes incidence

(HealthDay)—A culturally-tailored stepwise diabetes prevention program can reduce incidence of diabetes among overweight/obese Asian Indian adults, according to a study published online Aug. 8 in Diabetes Care.

Aug 12, 2016
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Obesity is a medical condition in which excess body fat has accumulated to the extent that it may have an adverse effect on health, leading to reduced life expectancy and/or increased health problems. Body mass index (BMI), a measurement which compares weight and height, defines people as overweight (pre-obese) if their BMI is between 25 and 30 kg/m2, and obese when it is greater than 30 kg/m2.

Obesity increases the likelihood of various diseases, particularly heart disease, type 2 diabetes, obstructive sleep apnea, certain types of cancer, and osteoarthritis. Obesity is most commonly caused by a combination of excessive food energy intake, lack of physical activity, and genetic susceptibility, although a few cases are caused primarily by genes, endocrine disorders, medications or psychiatric illness. Evidence to support the view that some obese people eat little yet gain weight due to a slow metabolism is limited; on average obese people have a greater energy expenditure than their thin counterparts due to the energy required to maintain an increased body mass.

Dieting and physical exercise are the mainstays of treatment for obesity. Moreover, it is important to improve diet quality by reducing the consumption of energy-dense foods such as those high in fat and sugars, and by increasing the intake of dietary fiber. To supplement this, or in case of failure, anti-obesity drugs may be taken to reduce appetite or inhibit fat absorption. In severe cases, surgery is performed or an intragastric balloon is placed to reduce stomach volume and/or bowel length, leading to earlier satiation and reduced ability to absorb nutrients from food.

Obesity is a leading preventable cause of death worldwide, with increasing prevalence in adults and children, and authorities view it as one of the most serious public health problems of the 21st century. Obesity is stigmatized in much of the modern world (particularly in the Western world), though it was widely perceived as a symbol of wealth and fertility at other times in history, and still is in some parts of the world.

This text uses material from Wikipedia licensed under CC BY-SA

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