Group-based trajectory modeling identified four groups of distinct occupational cognitive demands according to the degree of routine tasks in the participants occupations during their 30s, 40s, 50s and 60s. The researchers analyzed the link between these trajectory groups and clinically diagnosed MCI and dementia in participants in the HUNT4 70+ Study (2017-19). Additionally, the researchers accounted for important dementia risk factors such as age, gender, educational level, income, overall health, and lifestyle habits from assessments made in 1984-86 and 1995-97.  Within age groupings the researchers looked at such occupations as primary school teacher, salesperson, nurse and caregiver, office cleaner, civil engineer, and mechanic, among others.

After adjusting for age, sex, and education, the group with low occupational cognitive demands (the high RTI group) had a 37 percent higher risk of dementia compared to the group with high occupational cognitive demands. Occupations That Are Cognitively Stimulating May Be Protective Against Later-life Dementia — https://www.publichealth.columbia.edu/news/occupations-are-cognitively-stimulating-may-be-protective-against-later-life-dementia

Link to the study abstract – https://www.neurology.org/doi/10.1212/WNL.0000000000209353

I hope my spouse doesn’t read this or she’ll never let me retire.