Longevity and Quality of Life

Most of us are interested in living a long life. I recently came across a book called Blue Zones, which described studies, partially sponsored by the National Geographic Society,  involving various locations on earth where the inhabitants seem to have unusually high longevity. In examining the lifestyle factors in these regions, Dan Buettner and his associates came up with some factors that they believe contribute to longevity. These include strong social networks, diets with fruits and vegetables, active lifestyles, and a positive view of aging. The implication is that the people in these regions have a high quality of life. Little is said directly, however, about their levels of happiness.  Can we assume that the scientists posit that happiness and longevity are related? That is, do happy people live longer?

The answer, it seems, is yes, but only if you are healthy. This finding is based on a review in the Journal of Happiness Studies by Ruut Veenhoven. Veenhoven, a scientist at Erasmus University in the Netherlands,  found in his review that happiness in healthy populations added to longevity in a manner similar to being a non-smoker. In populations that have chronic diseases, being happy does not seem to add measurably to life expectancy.

Studies of healthy aging in the United States have focused less on longevity and more on factors that seem to ward off chronic illness. Carol Ryff, PhD, a leading researcher in this area, has shown that various personal factors, including autonomy (our degree of choice and control over our lives), environmental mastery, personal growth, positive relations with others, purpose in life and self acceptance are important for successful aging and resilience. Dr. Ryff  is among a growing number of researchers who are making the case for neuropsychoimmunology,  the science that demonstrates that how we feel influences our immune system (as previous blog posts have outlined). Clearly, it is not difficult to imagine that what we do, and how we feel about what we do, relates to the factors that Dr. Ryff has identified in her research.

So, what is the take away from this post? Do we know what factors that lead to longer lives also lead to happiness? The answer is an equivocal yes, but is based on comparing findings of different studies rather than looking at the question from a single study. Perhaps the MIDUS II (Midlife in the United States) studies now going on under Dr. Ryff's direction will address this issue.

In this blogger's opinion, the question of longevity must always be asked in the context of life quality. The issue for us all, it seems, is not just how long we live, but how well we live. 

Life Balance, What is it?

One of the aims of this blogsite is to promote dialogue about aspects of living well, focusing on how human activity, or how people use their time, contributes to their happiness, health and well-being. When it comes to lifestyles, daily routines can be regular, predictable and peaceful, or they can be volatile, unpredictable and stressful. Most of us experience lives that show characteristics of each extreme. Which is better? Should we be striving for steady state, and what would that be like? Is the journey through life best viewed as a highway metaphor where we try to maintain a course in the middle? How do we define that "middle ground"?

An earlier post in this series alluded to balance, pointing out that Michelle Obama, the incoming first lady, sees work-family balance as an important public health and family issue. Because lives out of balance are typically stressful, imbalance can be said to contribute to illness and chronic diseases, as pointed out in the post on resilience.

Most people intuitively understand that regular, predictable, and stress-avoidant routines are related to their well being, and thus they have a personal view of what life balance means, or what type of lifestyle works best for them.

Eighteen months ago, I had the privilege of participating in an international conference in Canada that brought together scientists and other experts from many disciplines for a discussion about life balance from theoretical and scientific perspectives. Although there were many interesting ideas expressed about how to define, study and otherwise understand life balance, another perspective examined during the meeting was philosophical. Is life balance a valid concept, or is it just another name for similar "positive states"? For example, is it the same idea as "well being" or "quality of life" with just another name?

My view is that all three concepts have features in common. However, life balance seems unique because it focuses specifically on how activity is organized within a life to help us achieve the outcomes we desire. I surmise that there is no one "life activity formula" that works for everyone, but that a successful formula must include certain characteristics or reflect identified principles.

What is your idea of a balanced life? What lifestyle characteristics do you think social scientists should consider in studying this concept? I look forward to reading your posts.