Thank you so much for a very informative article, Dr. Schimpff - I learned a lot. I was stunned to see that out of 120,000 people in the large study, only 1% had all five criteria for healthy cognitive aging? I've worked since 2018 to improve my health. I suspect that the "healthy weight" and "healthy diet" portions of the criteria were the ones that 99% of people in the study needed to adjust. It is increasingly difficult to pursue a healthy diet due to our food system.