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Understanding the malleable determinants of cellular aging is critical to understanding human longevity. Telomeres may provide a pathway for exploring this question. Telomeres are the protective caps at the ends of chromosomes. The length of telomeres offers insight into mitotic cell and possibly organismal longevity. Telomere length has now been linked to chronic stress exposure and depression. This raises the question of mechanism: How might cellular aging be modulated by psychological functioning? We consider two psychological processes or states that are in opposition to one another-threat cognition and mindfulness-and their effects on cellular aging. Psychological stress cognitions, particularly appraisals of threat and ruminative thoughts, can lead to prolonged states of reactivity. In contrast, mindfulness meditation techniques appear to shift cognitive appraisals from threat to challenge, decrease ruminative thought, and reduce stress arousal. Mindfulness may also directly increase positive arousal states. We review data linking telomere length to cognitive stress and stress arousal and present new data linking cognitive appraisal to telomere length. Given the pattern of associations revealed so far, we propose that some forms of meditation may have salutary effects on telomere length by reducing cognitive stress and stress arousal and increasing positive states of mind and hormonal factors that may promote telomere maintenance. Aspects of this model are currently being tested in ongoing trials of mindfulness meditation.
In this article we present background, theoretical rationale, and pilot data on the development of an intervention designed to increase positive affect in people living with serious health-related stress. This proof-of-concept study demonstrated that a multiple-component positive affect intervention is feasible and acceptable for people newly diagnosed with HIV. Retention in the intervention and adherence to home practice were high. Participants reported significant increases in positive affect and significant decreases in negative affect. This positive affect intervention can serve as a template for programs to be developed to help people experiencing health-related and other types of life stress.
BackgroundThere is increasing evidence showing beneficial effects of mindfulness and mindfulness training on various indicators of mental and physical health.
Purpose
This paper reports the 6-month follow-up effects of a mindfulness stress reduction training program among patients treated for cancer on perceived stress, depression, anxiety, post-traumatic stress symptoms, positive states of mind, coping self-efficacy, and mindfulness.
Methods
Patients with a previous cancer diagnosis were recruited and randomized into an intervention group or a waiting-list control group. The intervention consisted of an 8-week mindfulness-training course.
Results
Compared to participants in the control group, the intervention group showed a larger increase in mindfulness at 6-month follow-up. However, there were no differences on any of the other outcomes between the intervention and control groups. Continued meditation practice was associated with a significant reduction in post traumatic stress symptoms of avoidance.
Conclusions
The study draws attention to the need to better understand the mechanisms behind the effect of mindfulness training, and to potential modification of mindfulness interventions to promote sustained benefits over time.
BACKGROUND:There is increasing recognition of mindfulness and mindfulness training as a way to decrease stress and increase psychological functioning.
PURPOSE:
The aims of this study were to examine the effects of mindfulness stress reduction training on perceived stress and psychological well-being and to examine if changes in mindfulness mediate intervention effects on these outcomes.
METHODS:
Seventy women and one man with a previous cancer diagnosis (mean age 51.8 years, standard deviation = 9.86) were randomized into an intervention group or a wait-list control group. The intervention consisted of an 8-week mindfulness training course.
RESULTS:
Compared to participants in the control group, participants in the mindfulness training group had significantly decreased perceived stress and posttraumatic avoidance symptoms and increased positive states of mind. Those who participated in the intervention reported a significant increase in scores on the five-facet mindfulness questionnaire (FFMQ) when compared to controls. The increase in FFMQ score mediated the effects of the intervention on perceived stress, posttraumatic avoidance symptoms, and positive states of mind.
CONCLUSIONS:
This study indicates that the improvements in psychological well-being resulting from mindfulness stress reduction training can potentially be explained by increased levels of mindfulness as measured with the FFMQ. The importance of these findings for future research in the field of mindfulness is discussed.