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In 2013, an estimated 2.1 billion adults were overweight, as compared with 857 million in 1980. [9] Of adults who are overweight, 31% are obese. [8] Increases in obesity have been seen most in urban settings. [10] Since body fat can be measured in several ways, statistics on the epidemiology of obesity vary between sources.
Obesity is the source of about 15% of all preventable cancers. [5] [6] [7] In 2018, Chinese researchers performed a systematic review and comprehensive quantitative meta‐analysis of cohort studies reporting body mass index (BMI) and the risk of 23 cancer types, providing epidemiological evidence supporting the association between BMI and ...
Dianne Neumark-Sztainer is a University of Minnesota Regents Professor in the Division of Epidemiology and Community Health at the School of Public Health. She is a scholar on adolescent and young adult eating and weight-related health. Neumark-Sztainer's research on eating disorders prevention, conducted in secondary schools in Jerusalem ...
Obesity classification is a ranking of obesity, the medical condition in which excess body fat has accumulated to the extent that it has an adverse effect on health. [1] The World Health Organization (WHO) classifies obesity by body mass index (BMI). BMI is further evaluated in terms of fat distribution via the waist–hip ratio and total ...
t. e. Obesity is a medical condition, sometimes considered a disease, [8][9][10] in which excess body fat has accumulated to such an extent that it can potentially have negative effects on health. People are classified as obese when their body mass index (BMI)—a person's weight divided by the square of the person's height—is over 30 kg / m ...
The obesity paradox (excluding the cholesterol paradox) was first described in 1999 in overweight and obese people undergoing hemodialysis, [10] and has subsequently been found in those with heart failure, [5][11][12] myocardial infarction, [13] acute coronary syndrome, [14] chronic obstructive pulmonary disease (COPD), [15] pulmonary embolisms ...
Death rate from obesity, 2019. Obesity is a risk factor for many chronic physical and mental illnesses.. The health effects of being overweight but not obese are controversial, with some studies showing that the mortality rate for individuals who are classified as overweight (BMI 25.0 to 29.9) may actually be lower than for those with an ideal weight (BMI 18.5 to 24.9). [1]
Social class. More adults are obese in more unequal rich countries. The correlation between social class and body mass index (BMI) varies globally. A review in 1989 found that in developed countries women of a high social class were less likely to be obese. No significant differences were seen among men of different social classes.