We live in a commuter's world, but our smartphones have yet to catch up. Without cell service or Wi-Fi in the subway or on airplanes -- although that may change -- we're forced to interact with our (generally unpleasant) surroundings. Or maybe not. See also: 10 Better Alternatives to Your iPhone's Native Apps Now those precious minutes underground can be put to good use.
Some studies suggest that your mental faculties (and just about everything else) take a turn for the worse after you've hit 25. After that, it's allegedly a slow tumble down the proverbial hill. Of course, much like how it's never too late to start physically exercising, there are ways to slow and even reverse your cerebral decay. That’s where mental training tools like the free Fit Brains Trainer come in....
