What are some ideas to keep the mind active as I get older?

It is important to keep the mind active, and many ways to do so. Board games are a great way to engage the mind, especially games such as Scrabble and chess. Alternatively there are many mobile applications that have solo games such as Wordle and Sudoku that are good for daily mental exercises. And don't forget that reading and conversing daily is a great way to keep the mind engaged.