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.
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.
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-supported studies are investigating meditation for:
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