Telomeres are repeating sequences of DNA at the end of chromosomes. As cells replicate the telomeres get shorter, but their length is restored by the action of the enzyme telomerase reverse transcriptase. Over time, aging tends to reduce the length of the telomers. Telomere length is now used as a measure of biological aging and stress.
Dr. Greger takes up recent research on meditation and telomere length:
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