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Education may yield benefits for your aging brain

Justin Rowell by Justin Rowell
29.09.2022
Home Science

A brain model has a birthday candle on top of it

The benefits of good education and lifelong learning extend into old age, new research suggests.

The initial findings of a long-term study show that certain degenerative processes are reduced in the brains of academics. Their brains are better able to compensate age-related cognitive and neural limitations, according to the research.

The researchers followed more than 200 senior citizens for over seven years. The study participants are not affected by dementia, have average to above-average intelligence, and lead highly active social lives. The researchers examined the participants neuroanatomically as well as neuropsychologically using magnetic resonance imaging at regular intervals.

Based on complex statistical analyses, the researchers were able to show that academic education had a positive effect on age-related brain degeneration.

In her PhD thesis, first author Isabel Hotz used novel automatic methods among others to study so-called lacunes and white matter hyperintensities. These degenerative processes showed up as “black holes” and “white spots” on the digital images. The reasons for this are not yet known and may have to do with small, unnoticed cerebral infarcts, reduced blood flow, or loss of nerve pathways or neurons. This can limit a person’s cognitive performance, in particular when degeneration affects key regions of the brain.

The findings revealed that over the course of seven years, senior citizens with an academic background showed a significantly lower increase in these typical signs of brain degeneration.

“In addition, academics also processed information faster and more accurately—for example, when matching letters, numbers, of patterns. The decline in their mental processing performance was lower overall,” says Hotz.

The findings add to initial findings of other research groups, who have found that education has a positive effect on brain aging. Previous studies also suggest that mental processing speed depends on the integrity of neural networks in the brain. If these networks are affected, mental processing speed decreases.

Even though no causal link between education and reduced natural brain degeneration has so far been found, the following at least seems likely: “We suspect that a high level of education leads to an increase in neural and cognitive networks over the course of people’s lives, and that they build up reserves, so to speak. In old age, their brains are then better able to compensate any impairments that occur,” says Lutz Jäncke, professor of neuropsychology at the University of Zurich.

It is also possible that brains that are active well into old age are less susceptible to degeneration processes, says Jäncke, though this would have to be verified in the further course of the ongoing long-term study.

The research appears in NeuroImage: Clinical.

Source: University of Zurich

The post Education may yield benefits for your aging brain appeared first on Technovanguard.


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