Recent study results have found that work-related stress is not as detrimental to our brains as previously believed. In fact, mentally challenging jobs may reduce the risk of developing dementia. Dementia is a term that refers to a group of diseases causing a slow and progressive decline in cognitive functions, including memory, thinking, and learning capabilities, which can ultimately lead to death in later stages.
The study suggests that the more your brain works hard in your job, the lower the likelihood of experiencing memory and thinking issues later in life. The findings indicate that jobs that stimulate the mind while avoiding repetition—such as teaching, working in public relations, or computer programming—are beneficial. Conversely, street workers and sanitation workers may face a higher risk.
As part of the study, a team from the University Hospital of Oslo in Norway analyzed data from 7,000 individuals across 305 different professions. They measured the level of cognitive stimulation participants experienced at work and divided them into four groups based on these results. They also assessed the degree of routine manual tasks performed, such as repetitive movements while working, and the extent of routine cognitive tasks like bookkeeping and filing.
Subsequently, they recorded the level of non-repetitive analytical tasks, such as engaging in creative thinking, along with non-routine personal tasks like training, and non-repetitive cognitive tasks associated with professions such as public relations and computer programming. After reaching the age of seventy, participants completed memory and thinking tests to evaluate if they were experiencing mild cognitive impairment.
The analysis revealed that among those with low cognitive demand jobs, 42% were diagnosed with mild cognitive impairment. In contrast, only 27% of those working in higher cognitive demand positions were diagnosed with mild cognitive impairment. Overall, the group with lower cognitive demands at work had a 66% higher risk of developing moderate cognitive impairment compared to the group with higher cognitive demands.
