Nostalgia the Key to Happiness: Wisdom Wednesday

I came across the headline "Nostalgia is Key to Happiness" in an article in "Psychologies Magazine" for August 2011. 

How often have you been faced with the comment that, as a family historian,  you spend too much time in the past? 

Ryan Howell of San Francisco University is author of new research which asserts that "people are happy with their lives because they tend to hold a positive, nostalgic view of the past. ......We can all own a pair of rose tinted glasses and look back on our past with fondness and affection."

I know what he means!  I have particularly enjoyed writing posts for the "52 Weeks of Personal Genealogy and History" series and had much pleasure in recalling aspects of my childhood and appreciating the legacy left by my mother, father and aunt.  

What do you think?