1. Invest in a brain-training game. These aren't the only way to train your brain, but many think brain-training games are the best
2. Include some basic problems in your day. These can include, but aren't limited to: basic arithmetic, puzzles like crossword and sudoku, games that require thought like Chess, etc. These problems require your brain to work and not only help train your brain, but make you better at these things.
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