Featured Research

from universities, journals, and other organizations

Mindfulness from meditation associated with lower stress hormone

Date:
March 28, 2013
Source:
University of California Davis (UCD)
Summary:
Focusing on the present rather than letting the mind drift may help to lower levels of the stress hormone cortisol, suggests new research from the Shamatha Project at the University of California, Davis.

The findings come from the Shamatha Project, a comprehensive long-term, control-group study of the effects of meditation training on mind and body.
Credit: Yuri Arcurs / Fotolia

Focusing on the present rather than letting the mind drift may help to lower levels of the stress hormone cortisol, suggests new research from the Shamatha Project at the University of California, Davis.

The ability to focus mental resources on immediate experience is an aspect of mindfulness, which can be improved by meditation training.

"This is the first study to show a direct relation between resting cortisol and scores on any type of mindfulness scale," said Tonya Jacobs, a postdoctoral researcher at the UC Davis Center for Mind and Brain and first author of a paper describing the work, published this week in the journal Health Psychology.

High levels of cortisol, a hormone produced by the adrenal gland, are associated with physical or emotional stress. Prolonged release of the hormone contributes to wide-ranging, adverse effects on a number of physiological systems.

The new findings are the latest to come from the Shamatha Project, a comprehensive long-term, control-group study of the effects of meditation training on mind and body.

Led by Clifford Saron, associate research scientist at the UC Davis Center for Mind and Brain, the Shamatha Project has drawn the attention of both scientists and Buddhist scholars including the Dalai Lama, who has endorsed the project.

In the new study, Jacobs, Saron and their colleagues used a questionnaire to measure aspects of mindfulness among a group of volunteers before and after an intensive, three-month meditation retreat. They also measured cortisol levels in the volunteers' saliva.

During the retreat, Buddhist scholar and teacher B. Alan Wallace of the Santa Barbara Institute for Consciousness Studies trained participants in such attentional skills as mindfulness of breathing, observing mental events, and observing the nature of consciousness. Participants also practiced cultivating benevolent mental states, including loving kindness, compassion, empathic joy and equanimity.

At an individual level, there was a correlation between a high score for mindfulness and a low score in cortisol both before and after the retreat. Individuals whose mindfulness score increased after the retreat showed a decrease in cortisol.

"The more a person reported directing their cognitive resources to immediate sensory experience and the task at hand, the lower their resting cortisol," Jacobs said.

The research did not show a direct cause and effect, Jacobs emphasized. Indeed, she noted that the effect could run either way -- reduced levels of cortisol could lead to improved mindfulness, rather than the other way around. Scores on the mindfulness questionnaire increased from pre- to post-retreat, while levels of cortisol did not change overall.

According to Jacobs, training the mind to focus on immediate experience may reduce the propensity to ruminate about the past or worry about the future, thought processes that have been linked to cortisol release.

"The idea that we can train our minds in a way that fosters healthy mental habits and that these habits may be reflected in mind-body relations is not new; it's been around for thousands of years across various cultures and ideologies," Jacobs said. "However, this idea is just beginning to be integrated into Western medicine as objective evidence accumulates. Hopefully, studies like this one will contribute to that effort."

Saron noted that in this study, the authors used the term "mindfulness" to refer to behaviors that are reflected in a particular mindfulness scale, which was the measure used in the study.

"The scale measured the participants' propensity to let go of distressing thoughts and attend to different sensory domains, daily tasks, and the current contents of their minds. However, this scale may only reflect a subset of qualities that comprise the greater quality of mindfulness, as it is conceived across various contemplative traditions," he said.

Previous studies from the Shamatha Project have shown that the meditation retreat had positive effects on visual perception, sustained attention, socio-emotional well-being, resting brain activity and on the activity of telomerase, an enzyme important for the long-term health of body cells.

Co-authors on the paper, in addition to Jacobs, Saron and Wallace, are: UC Davis graduate students Stephen Aichele, Anthony Zanesco and Brandon King; Associate Professor Emilio Ferrer and Distinguished Professor Phillip Shaver from the UC Davis Department of Psychology; Baljinder Sahdra, lecturer in psychology at the University of Western Sydney; consulting scientist Erika Rosenberg from the UC Davis Center for Mind and Brain; Katherine MacLean, instructor in psychiatry at Johns Hopkins University School of Medicine; David Bridwell, postdoctoral fellow at the Mind Research Network in Albuquerque, N.M.; and Associate Professor Elissa Epel and Professor Margaret Kemeny, from the UCSF Department of Psychiatry.

Major support for the Shamatha Project has come from the Fetzer Institute and the Hershey Family Foundation. Additional support has come from numerous private foundations including the Baumann Foundation; the Tan Teo Charitable Foundation; the Yoga Research and Education Foundation; and individual donors. Individual researchers also received fellowship and other support from the National Science Foundation; the Social Sciences, Humanities Research Council of Canada; and the Barney and Barbro Fund. The project recently won support from the John Templeton Foundation to continue and extend the work.

The Center for Mind and Brain is one of three overlapping research centers at UC Davis that bring together researchers from the School of Medicine, College of Biological Sciences, and College of Letters and Science to work on the function of the brain. Founded in 2002, the Center for Mind and Brain studies cognition, vision, language, meditation and music. The Center for Neuroscience, established in 1990, investigates brain structure, memory, and the genes and molecules involved in conditions such as schizophrenia and depression. The MIND Institute was founded in 1998 with the support of six local families, five of whom have children with autism. It works with autistic children and their families, and on fragile X syndrome, Tourette's syndrome and other neurodevelopmental disorders.


Story Source:

The above story is based on materials provided by University of California Davis (UCD). Note: Materials may be edited for content and length.


Journal Reference:

  1. Tonya L. Jacobs, Phillip R. Shaver, Elissa S. Epel, Anthony P. Zanesco, Stephen R. Aichele, David A. Bridwell, Erika L. Rosenberg, Brandon G. King, Katherine A. MacLean, Baljinder K. Sahdra, Margaret E. Kemeny, Emilio Ferrer, B. Alan Wallace, Clifford D. Saron. Self-Reported Mindfulness and Cortisol During a Shamatha Meditation Retreat.. Health Psychology, 2013; DOI: 10.1037/a0031362

Cite This Page:

University of California Davis (UCD). "Mindfulness from meditation associated with lower stress hormone." ScienceDaily. ScienceDaily, 28 March 2013. <www.sciencedaily.com/releases/2013/03/130328142313.htm>.
University of California Davis (UCD). (2013, March 28). Mindfulness from meditation associated with lower stress hormone. ScienceDaily. Retrieved August 20, 2014 from www.sciencedaily.com/releases/2013/03/130328142313.htm
University of California Davis (UCD). "Mindfulness from meditation associated with lower stress hormone." ScienceDaily. www.sciencedaily.com/releases/2013/03/130328142313.htm (accessed August 20, 2014).

Share This




More Mind & Brain News

Wednesday, August 20, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Charter Schools Alter Post-Katrina Landscape

Charter Schools Alter Post-Katrina Landscape

AP (Aug. 20, 2014) Nine years after Hurricane Katrina, charter schools are the new reality of public education in New Orleans. The state of Louisiana took over most of the city's public schools after the killer storm in 2005. (Aug. 20) Video provided by AP
Powered by NewsLook.com
Researcher Testing on-Field Concussion Scanners

Researcher Testing on-Field Concussion Scanners

AP (Aug. 19, 2014) Four Texas high school football programs are trying out an experimental system designed to diagnose concussions on the field. The technology is in response to growing concern over head trauma in America's most watched sport. (Aug. 19) Video provided by AP
Powered by NewsLook.com
Kids' Drawings At Age 4 Linked To Intelligence At Age 14

Kids' Drawings At Age 4 Linked To Intelligence At Age 14

Newsy (Aug. 19, 2014) A study by King's College London says there's a link between how well kids draw at age 4 and how intelligent they are later in life. Video provided by Newsy
Powered by NewsLook.com
Mental, Neurological Disabilities Up 21% Among Kids

Mental, Neurological Disabilities Up 21% Among Kids

Newsy (Aug. 18, 2014) New numbers show a decade's worth of changes in the number of kids with disabilities. They suggest mental disabilities are up; physical ones are down. Video provided by Newsy
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins