29 Mar 2008
A large waist size during middle age has been linked to an increased risk of developing Alzheimer's disease later in life.
Researchers in the US found that people in their 40s with higher than average waist measurements are three-times as likely to suffer from the illness later in life.
The study, from the American Academy of Neurology journal, revealed that overweight people are 2.3 times more likely to develop Alzheimer's than those with an average BMI.
It was also revealed that this risk rises to 3.6 times more likely for people with obesity who also have a larger than average waist size.
Dr Rachel Whitmer, lead researcher, explained that being overweight is often cited as one of the common causes of several diseases.
"However, where one carries the weight, especially in midlife, appears to be an important predictor for dementia risk," she added.
Dr Whitmer concluded that previous research suggesting that "greater brain atrophy" is related to high abdominal fat can be combined with this new research to reveal "that the dangerous effects of abdominal obesity on the brain may start long before the signs of dementia appear".
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