Photo: Waltraud Grubitzsch / ZB / Globallookpress
Scientists at the University of Lavoro in England found out that obesity contributes to a reduction in brain volume, which in turn can cause dementia and other age-related neurodegenerative diseases. The authors, who published in the journal Neurology.
The researchers analyzed data collected in the survey 9652 people, whose average age was reached 55.4 years. Consideration was given to such factors as body mass index, ratio of waist and hips, as well as the total mass of fat. Participants were also conducted functional magnetic resonance imaging of the brain. Almost every fifth volunteer was suffering from excess weight, caused in most cases of a sedentary lifestyle.
It turned out that the increase in body mass index and ratio of waist and hips due to the lower volume of gray matter formed by bodies of neurons and glial cells. Also it was found that excess weight was accompanied by volume changes in such brain areas as the caudate nucleus, putamen pale globe and the nucleus accumbens. The correlation between obesity and white matter consisting of bundles of axons, was found.
It is known that the decrease in brain volume is associated with memory impairment and a high risk of developing dementia and other neurodegenerative diseases. Researchers do not yet know how obesity contributes to changes in the brain, however, it is expected that this somehow involved the circulatory system. However, it is also possible that the loss of gray matter in itself complicates the fight against obesity.
Video, photo All from Russia.