Memory tests are a great workout for the brain. An easy test to try is to place some regular objects on a table, look at them for a few seconds, cover them, and then try to recall as many as possible without looking at them.
#4: Complete crosswords, Sudoku puzzles; play brain training games
To improve memory, one can complete a crossword puzzle or solve a Sudoku puzzle every day that can help them improve their ability to recall better. They can also play brain training games or puzzles online in their free time.