Harvard study dives into physiological proof of yoga’s benefits

The scientific study of yoga and its effects/benefits keeps pushing further and further.

The latest news, out of Harvard, builds on an earlier report we highlighted that suggested yoga causes changes at the genetic level.

John Denninger, a psychiatrist at Harvard Medical School, is leading a five-year study on how the ancient practices affect genes and brain activity in the chronically stressed. His latest work follows a study he and others published earlier this year showing how so-called mind-body techniques can switch on and off some genes linked to stress and immune function.

While hundreds of studies have been conducted on the mental health benefits of yoga and meditation, they have tended to rely on blunt tools like participant questionnaires, as well as heart rate and blood pressure monitoring. Only recently have neuro-imaging and genomics technology used in Denninger’s latest studies allowed scientists to measure physiological changes in greater detail.

“There is a true biological effect,” said Denninger, director of research at the Benson-Henry Institute for Mind Body Medicine at Massachusetts General Hospital, one of Harvard Medical School’s teaching hospitals. “The kinds of things that happen when you meditate do have effects throughout the body, not just in the brain.”

Here’s a direct link to the study’s webpage. And more details from the news report:

His current study, to conclude in 2015 with about $3.3 million in funding from the National Institutes of Health, tracks 210 healthy subjects with high levels of reported chronic stress for six months. They are divided in three groups.

One group with 70 participants perform a form of yoga known as Kundalini, another 70 meditate and the rest listen to stress education audiobooks, all for 20 minutes a day at home. Kundalini is a form of yoga that incorporates meditation, breathing exercises and the singing of mantras in addition to postures. Denninger said it was chosen for the study because of its strong meditation component.

Participants come into the lab for weekly instruction for two months, followed by three sessions where they answer questionnaires, give blood samples used for genomic analysis and undergo neuro-imaging tests.

Unlike earlier studies, this one is the first to focus on participants with high levels of stress.

I’m amazed researchers can find people to study who don’t have high stress levels.

Posted by Steve

 

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theconfluencecountdown

Two Ashtangis write about their practice and their teachers.

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