Insight meditation and telomere biology: The effects of intensive retreat and the moderating role of personality.
Level 3 - non-randomized controlled study
Non-randomized controlled cohort study comparing retreat participants with non-retreat controls
PubMed 29518528 · doi:10.1016/j.bbi.2018.03.003
What was done
Researchers measured changes in telomere length, telomerase activity, and telomere-related gene expression in participants before and after a 1-month residential Insight meditation retreat. The retreat group was compared against an age- and gender-matched control group of experienced meditators who were not on retreat. Multilevel analyses evaluated biological changes as well as moderation by personality traits and meditation experience.
What was found
The abstract reports no exact numbers, effect sizes, or p-values. It notes an apparent increase in telomere length in the retreat group relative to controls, with the largest increases among participants highest in neuroticism and lowest in agreeableness. Telomere-related gene expression changed in the retreat group, including increases in Gar1 and HnRNPA1. No overall group-level changes were found in telomerase activity, though post-assessment telomerase activity correlated inversely with retreat engagement and prior experience, and varied with neuroticism.
Why it matters
This study provides exploratory evidence that intensive meditation practice and individual personality traits may interact to influence cellular aging biomarkers and telomere biology.
Limits
The abstract does not disclose sample sizes, baseline characteristics, effect sizes, or confidence intervals. The design was non-randomized, introducing self-selection and confounding risks. Clinical relevance and the persistence of short-term biological changes were not assessed.
Cited by
- supports A three-week residential meditation retreat led to telomere lengthening, with the greatest improvements observed in individuals high in neuroticism.