Health

Earlier bedtimes help kids fight obesity

(HealthDay)—With childhood obesity rates high, many studies have investigated lifestyle factors that can make a difference—which ones increase the risk and which ones reduce it.

Cancer

Estrogen receptors might hold key in obesity prevention

Despite countless fad diets, both obesity and metabolic diseases continue to plague communities across the U.S. Now, researchers from the University of Missouri believe that the clue to treatment might be related to estrogen—for ...

Genetics

After GWAS studies, how to narrow the search for genes?

Genome-wide association studies (GWAS) look at large populations to find genes that contribute to common, multi-gene traits like height or obesity. These comprehensive investigations frequently turn up large numbers of tiny ...

Health

How universities can help scale back the 'Freshman 15'

Students typically gain weight in their first year of university. There are expressions to reflect this knowledge, such as the "freshman 15" in North America (which assumes students gain 15 pounds, or around 8kg) and "freshman ...

Cardiology

Only half of US kids and teens have ideal cholesterol levels

Cholesterol levels in U.S. youth have improved from 1999 to 2016, but only half of children and adolescents are in the ideal range and 25 percent are in the clinically high range, according to a study published in JAMA, led ...

Cardiology

Blood proteins help predict risk of developing heart failure

Cardiovascular disease remains the leading cause of pain, suffering and death in the United States, and despite tremendous advances in knowledge on prevention, treatment of risk factors such as cholesterol, blood pressure ...

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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