Hi, I thought you may like this Mentalrobics exercise from Braingle.com:
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Age Vulnerable Memory

As the brain ages and deteriorates [ For more on 'deteriorates' go here: http://www.braingle.com/mind/318.html ], there are certain functions that are affected more than others. In particular, processing speed, short-term memory [ For more on 'short-term memory' go here: http://www.braingle.com/mind/25.html ], semantic memory [ For more on 'semantic memory' go here: http://www.braingle.com/mind/417.html ], attention to details, and the ability to multitask are more vulnerable to natural age related decline.

Fortunately, there are certain brain functions that are not affected much by age. These are attention, language, procedural memory [ For more on 'procedural memory' go here: http://www.braingle.com/mind/414.html ], and creativity. In addition, wisdom naturally improves with age. These unaffected skills often compensate for the functions that deteriorate.
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For more mind exercises: http://www.braingle.com/mind/