This not only answers one of the main criticisms of the game (often voiced by fellow Forbes contribute Erik Cain) but also creates new ways to play the game and expands the variety of puzzles and challenges in the game.
Reading, going to work and navigating a busy life may be enough to maintain brain health, but lifting performance takes massive amounts of practice--learning a new language, taking regular music lessons, doing complex jigsaw puzzles--to produce enough chemicals to make synapses stronger.