As the 2011 New Year looms, many people naturally take stock of the goals they hope to accomplish.  New Year's resolutions are more than a tradition.  They represent a chance to turn a page and achieve something important.  Some goals are relatively banal, others profound.  Tuning up one's health and personal appearance often lands high on the list of New Year's resolutions.  Striving to retain the vigor of youth, people go on diets and renew their commitment to exercise.  As the year wears on though, such commitments can become cumbersome and by March or April many of us are back to our old -- less healthful -- habits.