Embarrassed to admit it, but I was a bit tunnel-visioned on what I could accomplish on my own to minimize the risk of neurodegenerative disease. I did a cursory search and found some articles [1][2] highlighting a similar benefit to continued learning/brain exercises (increased cognitive reserve, which may not necessarily reduce the risk of developing dementia but should slow its onset considerably).

[1] https://www.nature.com/articles/s43587-023-00387-0

[2] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3038528/

Edited for clarity