I wrote an article for others years after the injury. You can Find it at Brain Fog
However for head injured victims as me at least, I needed to spend much time and get help from others. I certainly was not afraid to seek doctors and health experts, nutritionists advice. Elderly people may experience brain fog but I wasd experiencing it in my twenties and thirties, even.
Phosphatidylseprine (PS) is the most effective supplement I have found and have received many referrals. It can be found in Neuro PS Gold . It can be found at a few places, vitaminworld.com or puritan.com .
Diet and exercise of coursse, read my article
Neuro PS Gold is better than just Neuro PS. There is single, double, triple strength .
Relatively expensive but the two places I mentioned run buy 2 for 1 specials every month at least
It Works , (better than many supplements including focus factor)
Read my article at Brain Fog