Attempting to postpone senility

In about 3 months I will reach the tender age of 70. A couple of months ago I decided to re-pick up playing chess after a leave of absence of over 4 decades.  I've been retired for over 7 years and have discovered that not only is, "The idle mind is the devil's workshop," but also, "The idle mind can become a glob of tapioca." In order to avoid either of the two aformentioned outcomes, I embarked on an exercise program for my brain.

I have several things in my favor.

1. Being retired, I have ample time for study and playing against the computer.

2. I have found that several of my friends love the game.

3. I have two grandkids (ages 9 & 5) who are learning the game. (In teaching them, I am reteaching myself.)

I intend to post progress (Hopefully) reports from time to time.