As a individual, one can take control of this area in your life by staying physically, socially & intellectually active. "Use it or Lose it" is a truism that Dr. David Morgan, MD., a specialist on neural degeneration at the University of South Florida College of Medicine agrees with. "Just like your muscles, your mind needs to be exercised, or atrophy will set in." In actual tests, the mind (when stimulated) can improve in function.

I can attest to that personally. For the last several years I have been researching a multitude of areas related to sales, understanding people, and computer related challenges. My memory has improved markedly, and my mental perspicuity has increased noticeably.

Recently a new product has been developed that will actually help reverse brain function deterioration. I can back up what I say with double blind studies and scientific research plus a patented test to measure results. For more information got to my OASIS website, enter the site, and look for products, then METABERRY.

Doctors recommend a low fat, low cholesterol diet, and regular exercise. Avoid alcohol, tobacco, and meat, especially pork. Fish is good.
Take control of your life. This business of struggling in the business world for 40 years and then dropping into the couch potato mode has kept a lot of undertakers in business. Ask your insurance agent how long most people survive after retirement. Would you believe 3 to 6 years?
Personally I don't intend to retire. I have found a career that is fun, rewarding, and one that helps other people. It doesn't require any heavy lifting, & I can do it anywhere working from my house, 40 foot RV, or while on vacation.
Retire from what?