Explaining Why Meditators May Live Longer

The image of the ancient but youthful-looking sage meditating on a mountaintop might be closer to reality than you think, according to a new study that found that after a three-month stay at a meditation retreat, people showed higher levels of an enzyme associated with longevity.

The study is preliminary and didn't show that meditation actually extends life, but the findings suggest a possible means by which it could.

Researchers led by Tonya Jacobs of the University of California-Davis compared 30 participants at a meditation retreat held at the Shambhala Mountain Center in Colorado with matched controls on a waiting list for the retreat. Participants meditated six hours per day for three months. Their meditation centered on mindfulness — for instance, focusing solely on breathing, in the moment — and on lovingkindness and enhancing compassion towards others. (More on Time.com: Empathy Beats Bullies)

After the three-month intervention, researchers found that the meditators had on average about 30%* more activity of the enzyme telomerase than the controls did. Telomerase is responsible for repairing telomeres, the structures located on the ends chromosomes, which, like the plastic aglets at the tips of shoelaces, prevent the chromosome from unraveling. Each time a cell reproduces, its telomeres become shorter and less effective at protecting the chromosome — this, researchers believe, is a cause of aging. As the chromosome becomes more and more vulnerable, cell copying becomes sloppier and eventually stops when the telomeres disintegrate completely. Telomerase can mitigate — and possibly stop — cell aging. (MORE)

Source: Time