Make your brain work, use it for harder things. Not easy ones. Do crossword, chess, puzzles. Your brain is like a muscle if you don’t use it, it becomes weak. challenge it. Try new dresses, new dishes. Walk backward, eyes closed. Use the less used hand more often and make it proficient. Use your memory or else it will die. Recall names of people you met that day before sleeping in the order of meeting. Learn a language/read a book. Not watching TV. Do not isolate yourselves. Have social interactions. Loneliness is bad. Then no argument, no need for thinking. Play difficult card games with friends. Engage your brain. Move more. carry groceries from the store to your house. Walk, climb stairs instead of the elevator.Otherwise dementia, Alzheimer's Parkinson's are on their way.