Meditation and telomere length: a meta-analysis

Area of Science:

• Genetics and Molecular Biology
• Psychoneuroimmunology
• Behavioral Science

Background:

• Telomeres are chromosome end-caps crucial for cellular stability.
• Shortened telomeres are linked to aging, disease, and mortality.
• Meditation's impact on biological aging markers is an area of growing interest.

Purpose of the Study:

• To meta-analyze existing research on the relationship between meditation and telomere length.
• To determine if meditation practices are associated with longer telomeres.
• To explore the dose-response relationship between meditation duration and telomere length.

Main Methods:

• Systematic literature search for studies comparing telomere length in meditators versus control groups.
• Meta-analysis of 11 studies comprising 12 independent comparisons.
• Calculation of weighted effect sizes to quantify the overall impact of meditation.

Main Results:

• A significant overall effect size (g = .40) indicated longer telomeres in meditation groups.
• An outlier-trimmed analysis yielded a smaller effect size (g = .16).
• Increased meditation hours were positively associated with larger effect sizes.

Conclusions:

• Meditation is tentatively associated with longer telomeres.
• Greater meditation practice duration may enhance this effect.
• Meditation interventions show potential for preventing telomere attrition and promoting cellular health.