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The prevalence is 21%, 23% and 14% respectively. Also, in a national survey of American Indian children 5–18 years old, 39 percent were found to be overweight or at risk for being overweight. [24] As per national survey data, these trends indicate that by 2030, 86.3% of adults will be overweight or obese and 51.1% obese. [25]
In Britain, the weight at which people considered themselves to be overweight was significantly higher in 2007 than in 1999. [238] These changes are believed to be due to increasing rates of adiposity leading to increased acceptance of extra body fat as being normal. [238]
The thrifty gene hypothesis postulates that due to dietary scarcity during human evolution people are prone to obesity. Their ability to take advantage of rare periods of abundance by storing energy as fat would be advantageous during times of varying food availability, and individuals with greater adipose reserves would more likely survive famine.
Obesity is a disease characterized by having excessive body fat, increasing a person’s risk for many serious health problems, such as heart disease, diabetes, and even some cancers
While some people think lack of exercise is to blame for our expanding waistlines, others think it's entirely about the kind of food we eat. However, a new study has found a very simple reason to ...
A new study found that the number of overweight people is now greater than the number of underweight people in the world.
Obesity has been observed throughout human history. Many early depictions of the human form in art and sculpture appear obese. [2] However, it was not until the 20th century that obesity became common — so much so that, in 1997, the World Health Organization (WHO) formally recognized obesity as a global epidemic [3] and estimated that the worldwide prevalence of obesity has nearly tripled ...
Being overweight [a] is having more body fat than is optimally healthy. Being overweight is especially common where food supplies are plentiful and lifestyles are sedentary . As of 2003 [update] , excess weight reached epidemic proportions globally, with more than 1 billion adults being either overweight or obese . [ 1 ]