Telomeres are the caps at the end of DNA strands that reflect how long a cell will live. The longer the telomere, the longer the life span of that cell will be. Telomerase is the enzyme that slows the age-related shortening of telomeres; the more telomerase, the better for health and longevity. A meta-analysis of four randomized controlled studies involving a total of 190 meditators found practicing mindfulness was associated with increased telomerase activity.

