June 18, 20215:00 AM ET, by Bret Stetka

It’s something that many of us reckon with: the sense that we’re not quite as sharp as we once were.

I recently turned 42. Having lost my grandfather to Alzheimer’s, and with my mom suffering from a similar neurodegenerative disease, I’m very aware of what pathologies might lurk beneath my cranium.

In the absence of a cure for Alzheimer’s and other forms of dementia, the most important interventions for upholding brain function are preventive — those that help maintain our most marvelous, mysterious organ.

Based on the science, I take fish oil and broil salmon. I exercise. I try to challenge my cortex to the unfamiliar. As I wrote my recent book, A History of the Human Brain, which recounts the evolutionary tale of how our brain got here, I began to realize that so many of the same influences that shaped our brain evolution in the first place reflect the very measures we use to preserve our cognitive function today.

Source: Human Evolution Offers Clues For Modern Brain Health : Shots – Health News : NPR