Study Finds Optimists Live Longer Lives

Optimisits Longer Lives

New studies show that optimism is linked to living longer and those who feel younger rehabilitate from injury faster.

Health research has always been overwhelmingly focused on risk factors that may predispose people to disease and premature death. The ever-growing field of positive psychology, however, is focused on those positive attributes and behaviors which can, on their own, promote health and longevity.

One such recent study, by the Harvard Chan School of Public Health, looked at the trait of optimism, as experienced by a group of women ages 50-79, over the course of several decades.

The study was unique in that it studied a large cohort of people across a variety of racial and ethnic groups to understand whether optimism is affected by such social structures.

At the completion of this multi-year study, findings showed that the 25% of participants who displayed the most optimism were likely to have a 5.4% longer lifespan and a 10% greater likelihood of living beyond 90 years than those who were the least optimistic.

These results were found to have no correlation with race or ethnicity, and researchers found that lifestyle factors such as regular exercise and healthy eating, accounted for less than a quarter of the optimism lifespan association.

Dr. Hayami Koga, lead author of the study commented, “we tend to focus on the negative risk factors that affect our health… it is also important to think about the positive resources such as optimism that may be beneficial to our health, especially if we see that these benefits are seen across racial and ethnic groups.”

The trait of optimism also seems to be at play in another recent study. In this investigation, researchers set out to study whether subjective age or how old people feel, is connected to how well they heal.

The study, conducted by Bar-Ilan University in Israel, tracked nearly 200 seniors undergoing rehabilitation from osteoporotic fractures or stroke.

Patients were interviewed about their subjective age. The findings revealed that those who felt younger at hospital admission had considerably better physical outcomes at discharge one month later.

Researchers also found that those who felt younger recovered better because they were more optimistic about their outcomes.

Most surprising is that subjective age was the strongest predictor of positive outcomes, even more so than patients’ chronological age and other health conditions.

Study lead professor Amit Shrira stated to Science Daily, “Those who feel younger can maintain their health and functioning for longer periods, and as the current study shows, can recuperate better from disability. Therefore, by perceiving themselves to age successfully, people may preserve a healthy and vigorous lifestyle.”

The study findings will hopefully lead to the design and implementation of mental health strategies to positively affect peoples’ subjective age and are a reminder that how you think, goes a long way to affecting how you feel.

Telomerase May Be The Secret to Anti-Aging

dna strand helix concept dna research crispr

Dr. Bruce Lipton invites us to consider this: “contained within our bodies is what so many have studied, sought after, and dreamed about—the fountain of youth.”

What he’s talking about are telomeres; sections of DNA found at the end of each chromosome that can offer us insight into how we can “create a long-lived biology,” filled with wellness and meaning.

Telomeres And The Genetics of Aging

The science of genetics was formed in large part because of the human need to grapple with a limited lifespan. Central to this discussion is the role telomeres play in understanding the genetic coding of our aging. Telomeres have two essential functions:

  • To allow DNA to be replicated without losing genetic information 
  • To prevent the double helix of DNA from unraveling

The process of DNA replication involves a shortening of our chromosomes from their original version, reducing the length of the original DNA molecule. This process invariably leads to aging, depression, and disease.

The role of the telomere is to extend that replication time by adding a piece of DNA at the end of the strand that doesn’t code for anything and acts as a mechanism to prevent the degradation, or unwinding, of the double helix structure. 

Lipton uses the analogy of shoelaces to bring the concept of telomeres to life. At the end of shoelaces are little plastic caps known as “aglets,” which make the process of lacing shoes simple and fluid, while holding the strands of the shoelace material together. And the same concept can be applied to the telomeres at the ends of our chromosomes.

While the role telomeres play in retaining the integrity of a DNA strand is important, Lipton stresses they have an even more important function—telomeres form an extension of the DNA that allows for replication without affecting the gene programs, allowing for an extended amount of divisions before running out; the implication of this on our longevity is profound.

For many years, it was believed the lifespan of an organism was directly proportional to how many times a cell can divide before losing the telomere extensions and cutting into the DNA program. 

Leonard Hayflick, a scientist in the 1960s calculated that a human could live approximately 90 years before telomeres were lost. However, in 1984, research scientist Elizabeth Blackburn made a truly life-changing and life-extending revelation with the discovery of the enzyme telomerase, which extends telomere length. Her discovery made an exciting impact on our understanding of the human lifespan. 

But as interesting as Dr. Blackburn’s discovery was, the enzyme’s ability to be activated or inhibited is dependent upon a number of external factors. The inhibition of telomerase can be caused by improper nutrition, childhood abuse and neglect, domestic violence, post-traumatic stress disorder (PTSD), as well as a lack of self-love, love from others, and life purpose—factors that can all have a negative impact on our lifespan.

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