@rooand - I have an education health and medical although I am not a medical professional, nurse or doctor but I have heard a few other tips to remain cognitive as we age:
* Stay on a regular sleep pattern
* Get out into the sunsine as soon as you can in the morning.
* Exercise - any kind of exercise can be worked into your daily lifestyle. For incstance, whenever I do my dishes at my kitchen sink, I take the time afterwards to do some back & neck stretches where you stand at the kitchen sink, e.g. countertop height area, putting your hands on the sink edge or countertop with your feet slightly apart then slowly take steps backwards and as you do drop your head beween your slowly extending arms where you're facing the floor when your arms are totally extended out infront of you. Hold and feel the stretch, then slowly walk toward the upright position again bringing yourself finally to the totally upward position. I do all the time. There are so many other simple exercises that can be worked into your daily routine.

Thanks for the viewers and the Mayo Clinic for this wonderful space where we can share idea!

Have a fantastic day!
Patti