@mmwagner46: it's an understandable concern when our parents age and suffer from dementia that we will be confronted with a similar set of circumstances. It might help to remain grounded in the present and arm yourself with healthy habits now, including: regular physical exercise. eating a heart-healthy diet like the Mediterranean or DASH diet, avoiding smoking and limiting alcohol consumption. remaining socially and mentally active, practicing effective ways to manage stress and maintaining health with regular physicals.

Mayo Clinic also offers programs such as this: https://www.mayoclinichealthsystem.org/wellness/journey/june

Have you practiced or looked into any of these?