Happy-Neuron is an online brain fitness site that has developed games that improve your brain's ability to focus, memorize, develop better visual spatial, and language skills, and make your executive functioning better.  In short, the games make you smarter.

The Happy Nueron site, works on an annual subscription fee, but these 6 games are absolutely free for you to play.  I have been playing these games, and they are not only fun and challenging, but also quite addictive.  I can feel my neurons connecting, and my brain getting a tad bit sharper.

What have you done for your brain today?