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Overeating now bigger global problem than lack of food
The largest ever study into the state of the world's health has revealed that, for the first time, the number of years of healthy living lost as a result of people eating too much outweigh the number lost by people eating too little.
"The Global Burden of Disease 2010 is the most comprehensive assessment of human health in the history of medicine," says Richard Horton, editor of The Lancet, in which the report will be published. "It provides insights into human health that are comparable in scope and depth to the sequencing of the human genome."
The report assessed the prevalence of diseases and causes of death across the globe in 2010, and compared these to data collected in 1990 to identify any trends.
For the first time on a global scale, being overweight has become more of a health problem than lack of nutrition. In 1990, undernutrition was the leading cause of disease burden, measured as the number of years of healthy life an average person could expect to lose as a result of illness or early death. Back then, a high body-mass index, or BMI, was ranked tenth. Now, undernutrition has dropped to eighth place, while BMI has risen to become the sixth leading cause of disease burden.
"A greater amount of disease burden has occurred because people are fat and have too much to eat, as opposed to having too little to eat," says Alan Lopez at the University of Queensland in Brisbane, Australia, who worked on the study.
Being overweight can hike a person's blood pressure and cause stroke and heart disease; together, these two conditions are responsible for a quarter of all deaths. And the problem isn't limited to the west – the Middle East is one region that is seeing significant increases in BMI.
...Looking forward, obesity and the use of tobacco and alcohol are obvious targets for health policy change. But it is also important to focus on healthy ageing.
"The large burden [of disease] related to disability was a surprise," says Christopher Murray at the University of Washington in Seattle. "There's been a focus on mortality, but there's a huge volume [of disease burden] related to things that don't really kill you."
The largest ever study into the state of the world's health has revealed that, for the first time, the number of years of healthy living lost as a result of people eating too much outweigh the number lost by people eating too little.
"The Global Burden of Disease 2010 is the most comprehensive assessment of human health in the history of medicine," says Richard Horton, editor of The Lancet, in which the report will be published. "It provides insights into human health that are comparable in scope and depth to the sequencing of the human genome."
The report assessed the prevalence of diseases and causes of death across the globe in 2010, and compared these to data collected in 1990 to identify any trends.
For the first time on a global scale, being overweight has become more of a health problem than lack of nutrition. In 1990, undernutrition was the leading cause of disease burden, measured as the number of years of healthy life an average person could expect to lose as a result of illness or early death. Back then, a high body-mass index, or BMI, was ranked tenth. Now, undernutrition has dropped to eighth place, while BMI has risen to become the sixth leading cause of disease burden.
"A greater amount of disease burden has occurred because people are fat and have too much to eat, as opposed to having too little to eat," says Alan Lopez at the University of Queensland in Brisbane, Australia, who worked on the study.
Being overweight can hike a person's blood pressure and cause stroke and heart disease; together, these two conditions are responsible for a quarter of all deaths. And the problem isn't limited to the west – the Middle East is one region that is seeing significant increases in BMI.
...Looking forward, obesity and the use of tobacco and alcohol are obvious targets for health policy change. But it is also important to focus on healthy ageing.
"The large burden [of disease] related to disability was a surprise," says Christopher Murray at the University of Washington in Seattle. "There's been a focus on mortality, but there's a huge volume [of disease burden] related to things that don't really kill you."
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