The brain of people who are obese or have a few kilograms more than they should, is aged 10 years more compared to that of normal ones.
This is shown by a study conducted with magnetic resonance imaging by the universities of Cambridge and Yale, published in the scientific journal "Neurobiology of Aging", reports Ekonomia Online.
Cerebral scans of 246 normal-weight people and 227 obese or overweight people between the ages of 20 and 87 showed that at the age of 37, when the volume of the bundle of nerve fibers begins to decrease, the white matter of the latter appears more easier than the first ones.
The difference is maximal at age 40 and then stabilizes, with a gap of 10 years of aging more for the obese.
This conclusion is reached based on the images. However, it is necessary to make some clarifications.
The reduction of white matter did not lead to any decline in the cognitive function of the brain for overweight people, where the IQ resulted in the same line as that of thin individuals.
Moreover, it is difficult to understand whether the decrease in nerve fiber volume is caused by the increase in BMI, if it is the cause, or if both have a common origin.
However, the study is limited in not following patients over time, because it only "photographs" the current situation, writes Shqip. Even using BMI can hide surprises because it doesn't account for muscle mass, as opposed to body fat.
Now it will be necessary to clarify the relationship of this direct link to the onset of brain diseases.
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