My wife is a (retired) nutritional therapist. If it’s ok I’ll ask her if there are any food / supplements that can be beneficial to memory.
From my own experiences - I know exercise outside in the fresh air - even a walk - helps mood and the mind - especially at this time of year, and good quality sleep - both aid general well being and cognitive function.
Foods rich in Omega3 fats help the brain - so oily fish, free range eggs, green leafy veg etc and a general home made food type diet (not processed foods). Go easy on the booze and sweets - but don’t stress so if he like a tot of whiskey well why not! Having a positive mental attitude can generally help the mind condition.
I have to deal with my complaints every time. I take everything to heart, thus I frequently take offense at a guy. And there is like a wall between us because we are so hurt by one another. I then started looking for advice on how to deal with my fears and stonewalling. I wished to preserve my affection. I was shocked by how effective therapy
https://www.australiacounselling.com...-relationship/ was in the end, so I simply went with it. thus be sure to resolve any issues you may have.
Apparently the brain uses something like 60% of the calories of our resting rate, maybe 20% of our total calories - so make sure he is eating enough and good quality foods (as above).
Good luck.
Martyn