Increasing research suggests that more stimulating mental work translates to better brain function in later life. Now, a team of Scottish psychologists provides further support with evidence showing that the complexity of a person’s main lifetime occupation is associated with better cognitive performance at age 70.
The study, published in the journal Neurology, was based on examining available data on IQ, general ability, processing speed, and memory from a database involving 1,066 men and women all born in 1936. To reach their findings, the researchers factored in IQ data from the age of 11 and cognitive testing done many decades later, at age 70, when most of the subjects in the study were retired.
According to the researchers, people with intellectually complex jobs involving analyzing or synthesizing data, instructing others, or negotiating, scored higher in late life thinking skills. Thus, former social workers, graphic designers, architects, engineers, lawyers, surgeons, and probation officers, as examples, typically did well on their mental testing.
As one of the researchers said, the results are in sync with the “use it or lose it” concept; in this case, what’s at stake is one’s mental muscle. The researchers aren’t sure about the dynamics of brainpower preservation; however, they suggest that jobs that are more mentally stimulating can promote and maintain acuity and skills, which can be utilized later in life.
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