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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]
A BMI of ≥ 35 kg/m 2 and experiencing obesity-related health conditions or ≥ 40 or 45 kg/m 2 is morbid obesity. A BMI of ≥ 45 or 50 kg/m 2 is super obesity . As Asian populations develop negative health consequences at a lower BMI than Caucasians , some nations have redefined obesity; Japan has defined obesity as any BMI greater than 25 ...
Obesity in adults is divided into three categories. Adults with a BMI of 30 to 34.9 have class 1 obesity; adults with a BMI of 35 to 39.9 have class 2 obesity; adults with a BMI of 40 or greater have class 3 obesity, which is also known as extreme or severe obesity (and was formerly known as morbid obesity).
In newborns, symptoms include weak muscles, poor feeding, and slow development. [2] Beginning in childhood, those affected become constantly hungry, which often leads to obesity and type 2 diabetes. [2] Mild to moderate intellectual impairment and behavioral problems are also typical of the disorder. [2]
The preferred obesity metric in scholarly circles is the body fat percentage (BF%) [citation needed] - the ratio of the total weight of person's fat to his or her body weight, and BMI is viewed merely as a way to approximate BF%. [23] Levels in excess of 32% for women and 25% for men are generally considered to indicate obesity.
The exact prevalence of obesity hypoventilation syndrome is unknown, and it is thought that many people with symptoms of OHS have not been diagnosed. [4] About a third of all people with morbid obesity (a body mass index exceeding 40 kg/m 2) have elevated carbon dioxide levels in the blood. [5]
Up to 11% of women [2] Lipedema is a condition that is almost exclusively found in women [ 3 ] and results in enlargement of both legs due to deposits of fat under the skin. [ 2 ] Women of any weight may be affected [ 2 ] [ 3 ] and the fat is resistant to traditional weight-loss methods. [ 4 ]
Central obesity can be a feature of lipodystrophies, a group of diseases that is either inherited, or due to secondary causes (often protease inhibitors, a group of medications against AIDS). Central obesity is a symptom of Cushing's syndrome [38] and is also common in patients with polycystic ovary syndrome (PCOS).