Remain socially involved
Social interaction helps to prevent depression and stress, both of which can contribute to memory loss. You should look for ways to connect with loved ones, friends, and others, especially if you live alone. Solitary confinement has been linked to brain atrophy in studies, so staying socially active may have the opposite effect and strengthen the health of your brain.
You should also build new skills throughout your life, such as how to cook Indian food, play an instrument, or even learn the rules of new card games or travel to an unfamiliar city, helps keep your brain healthy by constantly creating new connections between brain cells. It is more beneficial to learn real-world skills than to play online "cognitive enhancement" games.