In the new study, psychological scientist Elissa Epel and colleagues at the University of California, San Francisco examined the relationship between telomere length, an emerging biomarker for cellular and general bodily aging, and the tendency to be present in the moment or to mind wander in 239 healthy women who were 50 to 65 years old.
The researchers defined being present in the moment as an inclination to be focused on current tasks, while they defined mind wandering as the inclination to have thoughts about things other than the present or being elsewhere.
According to the findings, published in Clinical Psychological Science, a journal of the Association for Psychological Science, the participants who reported more mind wandering had shorter telomeres, while those who reported more presence in the moment had longer telomeres, even after their levels of perceived stress were taken into account.
Telomeres are the DNA-caps that protect the ends of chromosomes, preventing them from deteriorating or fusing with neighboring chromosomes. Telomeres typically shorten with age and in response to psychological and physiological stressors, and research has shown that telomere shortness predicts early disease and mortality.
Because the study assessed mind wandering and telomeres at the same time, the researchers don’t yet know whether mind wandering leads to shorter telomeres, whether the reverse occurs, or some common third factor is contributing to both.
Previous studies have found that mindful meditation interventions, which promote attention on the present with a compassionate attitude of acceptance, are associated with increased activity of an enzyme known as telomerase, which is responsible for protecting and in some cases, replenishing telomeres.
Along with the new study, these findings support the possibility that a focus on the present may be part of what promotes health measurable at the cellular level, the researchers said.
“Our attentional state — where our thoughts rest at any moment – turns out to be a fascinating window into our well-being. It may be affected by our emotional state as well as shape our emotional state,” said Epel. “In our healthy sample, people who report being more engaged in their current activities tend to have longer telomeres. We don’t yet know how generalizable or important this relationship is.”
Moving forward, Epel, co-author Eli Puterman, and colleagues are developing a series of classes to promote more mindful presence, to see if this intervention protects telomere maintenance or even lengthens telomeres.
In the current study, participants self-reported a tendency to mind wander, and were measured for aspects of psychological distress and well-being. The sample was highly educated and had a narrow range of both chronological age and psychological stress (most were low stress), all of which might have contributed to the ability to detect this relationship, Epel said.
The study is the first to link attentional state to telomere length and to control for stress and depression, Epel said. Previous studies have shown links between telomere length and particular types of stress and depression. Since this study relied on self-reported attentional state, she said, further studies directly measuring presence and mind wandering will be needed.
“This study was a first step and suggests it’s worth delving into understanding the link between mind wandering and cell health to get a better understanding of whether there is causality and reversibility,” said Epel. “For example, does reducing mind wandering promote better cell health? Or are these relationships just reflective of some underlying long-standing characteristics of a person?”
“Results suggest the possibility that the attitude of acceptance of negative experiences might be one of the factors that promotes greater ability to be more present – to be okay with one’s current experience and not avoid the unpleasant aspects of everyday experiences,” she said.
“A number of emotion theories suggest that greater attentional control leads to less suppression of negative emotions, and thus less of the rebound effect of unsuccessful suppression,” said co-author Wendy Berry Mendes. “Alternatively, attentional control may help us interpret emotions in a more constructive way, what we call ‘positive reappraisals.’ Such styles of thinking have been associated with healthy physiological states.”
In addition to Epel, Mendes, and Puterman, co-authors on this study include Jue Lin, Elizabeth Blackburn, and Alanie Lazaro.
Epel, Blackburn and Lin are co-founders of Telome Health Inc, a telomere measurement company.
This study was funded by the Baumann Foundation and the Barney & Barbro Foundation.
For more information about this study, please contact: Elissa S. Epel at firstname.lastname@example.org.
Clinical Psychological Science is APS’s newest journal. For a copy of the article “Wandering Minds and Aging Cells” and access to other Clinical Psychological Science research findings, please contact Anna Mikulak at 202-293-9300