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MEDITATION

What Is Meditation?

Meditation is a mind and body practice that has a long history of use for increasing calmness and physical relaxation, improving psychological balance, coping with illness, and enhancing overall health and well-being. This practice links the mind and body while bringing long term focus to the interactions among the brain, mind, body, and behavior.

There are many types of meditation, but most have four elements in common: a quiet location with as few distractions as possible; a specific, comfortable posture (sitting, lying down, walking, or in other positions); a focus of attention (a specially chosen word or set of words, an object, or the sensations of the breath); and an open attitude (letting distractions come and go naturally without judging them).

What Science Says About the Effectiveness of Meditation

Many studies have investigated meditation for different conditions, and there’s evidence that it may reduce blood pressure, symptoms of irritable bowel syndrome, anxiety, depression, insomnia, as well as, assist with pain control, and addiction including smoking cessation. Now with the modern tools available to neuroscientists we have even more evidence of the impact of meditation on the actual brain structure.

Meditation and the Brain

Some research suggests that meditation may physically change the brain and body and could potentially help to improve many health problems and promote healthy behaviors.

Research Studies

• In a 2012 study, researchers compared brain images from 50 adults who meditate and 50 adults who don’t meditate. Results suggested that people who practiced meditation for many years have more folds in the outer layer of the brain. This process (called gyrification) may increase the brain’s ability to process information.

• A 2013 review of three studies suggests that meditation may slow, stall, or even reverse changes that take place in the brain due to normal aging.

• Results from a 2012 NCCIH-funded study suggest that meditation can affect activity in the amygdala (a part of the brain involved in processing emotions), and that different types of meditation can affect the amygdala differently even when the person is not meditating.

• Sara Lazar and her team at Harvard found that mindfulness meditation does actually change the structure of the brain: Eight weeks of Mindfulness-Based Stress Reduction (MBSR) was found to increase cortical thickness in the hippocampus, which governs learning and memory, and in certain areas of the brain that play roles in emotion regulation and self-referential processing. There were also decreases in brain cell volume in the amygdala, which is responsible for fear, anxiety, and stress – and these changes matched the participants’ self-reports of their stress levels, indicating that meditation not only changes the brain, but it changes our subjective perception and feelings as well. In fact, a follow-up study by Lazar’s team found that after meditation training, changes in brain areas linked to mood and arousal were also linked to improvements in how participants said they felt — i.e., their psychological well-being. 

Just a Few Days of Training Improves Concentration and Attention

Having problems concentrating impacts everyone from school age on up – we all know that with an ADD diagnosis or not lack of focus can have devastating results on a young person's success in school. For adults, equally harmful to career and life issues.

Interestingly but not surprisingly, one of the central benefits of meditation is that it improves attention and concentration: One recent study found that just a couple of weeks of meditation training helped people’s focus and memory during the verbal reasoning section of the GRE. In fact, the increase in score was equivalent to 16 percentile points. Since the strong focus of attention (on an object, idea, or activity) is one of the central aims of meditation, it’s not so surprising that meditation should help people’s cognitive skills on the job, too – but it’s nice to have science confirm it. And everyone can use a little extra assistance on standardized tests and work place concentration.

Meditation Reduces Anxiety — and Social Anxiety

A lot of people start meditating for its benefits in stress reduction, and there’s lots of good evidence to support this rationale. There’s a whole newer sub-genre of meditation, mentioned earlier, called Mindfulness-Based Stress Reduction (MBSR), developed by Jon Kabat-Zinn at the University of Massachusetts’ Center for Mindfulness (now available all over the country), that aims to reduce a person’s stress level, physically and mentally. Studies have shown its benefits in reducing anxiety, even years after the initial 8-week course. Research has also shown that mindfulness meditation, in contrast to attending to the breath only, can reduce anxiety – and that these changes seem to be mediated through the brain regions associated with those self-referential (“me-centered”) thoughts. Mindfulness meditation has also been shown to help people with social anxiety disorder: a Stanford University team found that MBSR brought about changes in brain regions involved in attention, as well as relief from symptoms of social anxiety.

NCCIH-Funded Research

NCCIH-supported studies are investigating meditation for:

  • Teens experiencing chronic, widespread pain, such as from fibromyalgia
  • Stress reduction for people with multiple sclerosis
  • Post-traumatic stress disorder, headaches, reducing blood pressure.

For More Information

NCCIH Clearinghouse

The NCCIH Clearinghouse provides information on NCCIH and complementary and integrative health approaches, including publications and searches of Federal databases of scientific and medical literature. The Clearinghouse does not provide medical advice, treatment recommendations, or referrals to practitioners.

Toll-free in the U.S.: 

1-888-644-6226

TTY (for deaf and hard-of-hearing callers):

1-866-464-3615

Web site:

nccih.nih.gov

E-mail:

info@nccih.nih.gov(link sends e-mail)

Key References

Information on this page is not copyrighted and is in the public domain. Duplication is encouraged.

If you want to be trained in meditation techniques call me today, arrange a free consultation and learn how you can obtain a free copy of my book Meditation by Nature.

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