Your brain, like every other part of your body, needs regular exercise to remain healthy and effective but it is estimated that most of us only use a tiny fraction of the enormous power within it.
This organisation has a series of comprehensive Brain Training exercises which have been shown in many cases to improve the effectiveness of your brain capabilities.
Most of the techniques involve playing games that should make your brain work progressively harder so do have a look and you can sign up for a free account so why not give it a try.