I finished a research paper I was writing on the effects of meditation on the mind and body and thought id share it here. I got really rushed so its not nearly as good as i wanted to be, but its still packed full of information. as a warning, I'm not a good writer, i just want to share the info. Since i got rushed there may be some misinformation, but you can check the works cited to see the studies for yourself. i've also attached a .doc file for anyone that would like to read a cleaner, more organized version
P.S. Universe Canon - I just read through the thread and saw you're writing a paper on this too! I'd love to read it when you're done if you wouldn't mine sharing
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I really slacked on mine and would love to read a good one
here it is:
In the modern industrialized world, many things are different about life than they were one thousand years ago: diseases are treated with medication, new mental illnesses are being defined and everyday life is packed with stress. Most people to overcome these problems today watch TV, exercise, use drugs, speak with therapists or overcome them by other means. Some people, however, are reverting back to old practices that some religions use to treat these problems. The practices I am speaking of are different forms of meditation. Meditation used to be something that was only used to attain “enlightenment,” or “universal knowledge of all things.” Recently, however, people in the modern world have adopted meditation for its relaxing, stress-reducing properties. Over the years, meditation has also caught the eye of the scientific community and many studies have been and are being conducted on it. Scientists are particularly interested in what meditation does to the brain and how it can be used to treat both psychological and physiological diseases. Meditation is proving to be an interesting topic and new information is being frequently uncovered about it. In this paper, I will discuss the effects of meditation on both the mind and body and evidence for how it may improve diseases.
Meditation has been shown to affect the brain in many ways. One way meditation can affect the brain is induce neuroplasticity. Neuroplasticity is described as the way neurons connect with more synapses, which in turn creates more “pathways” throughout the brain. In simpler terms, it is almost like “rewiring” the brain (Neuroplasticity). Learning usually induces Neuroplasticity, so it is interesting that meditation may induce it as well. Because meditation has been shown to induce neuroplasticity, it may also slow the aging process of the brain. One study conducted at The University of California used fMRI to scan brains of experienced meditators and nonmeditators. The results showed that the meditators had increased gyrification in the brain (Hanc). Gyrification is “a term that describes the folding of the cerebral cortex, the outermost part of the brain.” The more folding that occurs in the cerebral cortex, the larger the surface area of the brain (Wen). Gyrification is important because it may play a role in neural processing. It is interesting to note that Albert Einstein’s brain shows more gyrification than the average human (Florida State University). In another study conducted by Sara Lazar, a psychologist at Harvard Medical School, experienced meditators showed more density in “areas of the cortex associated with attention and sensory processing.” Because these areas of the brain grew, this study may also suggest that meditation can slow the aging process of the brain (Bhattacharjee). Studies have also shown that regular meditators demonstrate increased gray and white matter throughout the brain. “Grey matter is involved with information processing and white matter is the ‘wiring’ of the communication network throughout the brain.” This particular study also suggests that meditation may slow the effects of aging on the brain (Fan 2).
Meditation improves the mind not only by neuroplasticity, but by other methods as well. There are some studies suggesting that meditation may improve memory. In a study published in the journal, Emotion, researchers found that stressed military service members that meditated experienced an increase in working memory (The Neuroscience of Meditation 1). “[Working memory] is essential for problem solving [and] the execution of complex cognitive tasks” (Memory). To further prove this finding, a study of 15 older adults with memory problems shows that “daily 12-minute meditation sessions over a period of eight weeks can improve overall memory function.” The patients involved in the study also experienced increased blood flow to areas of the brain involved in memory (The Neuroscience of Meditation 1). Other than memory, meditation has also been shown to improve attention. In one study published in Conscious Cognition, people who meditated performed significantly better on measures of attention than people who did not meditate (The Neuroscience of Meditation 7). In a similar study, students practicing meditation “showed greater improvement in conflict scores on the Attention Network Test, higher vigor on the Profile of Mood States scale and showed lower anxiety, depression, anger, and fatigue” (Ming).
As well as boost memory and attention, meditation may also treat mental disorders and has proven to relieve stress. According to an article published in The Archives of General Psychiatry, a therapeutic approach to meditation called Mindfulness-Based Cognitive Therapy (MBCT) proved to “offer protection again relapse/recurrence [of depression] on a par with that of maintenance antidepressant pharmacotherapy” (Young 75). To further prove this finding, another study was published in the Journal of Consulting and Clinical Psychology comparing the relapse rate of depression in diagnosed people who practiced MBCT with people who didn’t meditate at all. The relapse rate of people who practiced MBCT was 34% while the control group had a 66% relapse rate (Gullie). Meditation increases serotonin levels so this may be a contributing factor in the study (Garden 22). In another form of therapeutic meditation called Compassion-Based Cognitive Therapy (CBCT), s study conducted at Emory found that both healthy adults and children in foster care that practiced CBCT showed “reduced emotion distress and more resilience in response to stress” (Compassion Meditation). Meditation relieves stress by reducing the amount of cortisol in the body. Cortisol is a hormone released during times of stress and can interfere with neurotransmitters and damage neurons by breaking down the myelin layer that protects the cell. Cortisol can also weaken the immune system and age the brain and body faster (McQuillan).
Another thing meditation has been shown to do is change mood and behavior. In studies, people who meditate scanned under fMRI have shown less activity in the brain associated with emotions such as “anger, depression and anxiety” and more activity in the brain associated with emotions such as “buoyancy, optimism and confidence” (Gross). In another study published by Social Cognitive and Affective Neuroscience, meditators practicing CBCT were shown to have an increased ability to read facial expressions of other people. Meditators also showed “increased activity in the inferior frontal gyrus and dorsomedial prefontal cortex, areas in the brain associated with empathy” (Compassion Meditation).
In some people, incorrect practice of meditation has caused negative effects. For example, there have been reports of people attending meditation retreats and experiencing psychosis shortly after. Meditation practitioners explain that some people during meditation retreats “go through very traumatic experiences and require round the clock support, the use of strong drugs or even hospitalization” (Garden 25). There have also been reports of people committing suicide shortly after retreats (Garden 21). A scientific cause for these occurrences has not been stated, but meditation practitioners speculate that these people have jumped into “deep” forms of meditation too fast. They say that one needs to start meditating with simple methods of meditation first and then work their way up to more “deep” forms. Because there is no known answer why meditation causes these negative reactions, it opens up a big gate for future researchers.
One of the most interesting aspects of meditation is its ability to change brain waves. In a study published in Journal of Alternative and Complementary Medicine, people who meditate showed differing brain waves than people who do not meditate. The researchers found that people show more theta, alpha, and gamma rays during meditation. Theta waves are associated with “relaxed attention and alertness.” Alpha waves are an indication of “wakeful rest in which the brain relaxes.” Delta waves are especially intriguing and are involved with “awareness, concentration and consciousness.” Experienced meditators show a lot of gamma ray activity even when not meditating. Because gamma ways are associated with consciousness, meditation could lead to a greater level of consciousness (The Neuroscience of Meditation 7).
As well as meditation affecting the brain, it has also been shown to affect the body. There are studies showing that meditation may benefit the cardiovascular system. For example, in a study presented to the American Heart Association, meditators and nonmeditators with coronary artery disease were compared. 200 patients were studied in total and of the 100 people that meditated, 20 had heart attacks compared to the control group who had 32. As well as this, the meditators also remained disease free longer and reduced their systolic blood pressure (Hanc).
Meditation may also benefit the immune system. Meditators were compared to a control group and the people that meditated showed a stronger immune reaction to the flu vaccine (Gross). Cortisol, caused by stress, weakens the immune system. Because meditation lowers the amount of cortisol, it protects the immune system from the damaging hormone.
Another way meditation may benefit the body is by improving chronic pain. In one study, patients who attended a 10-week mindfulness meditation program reported “statistically significant progress towards greater energy, less pain and improved coping” (Patil). In another study, experienced meditators were exposed to painful heat while being scanned by MRI. All participants reported pain, but the meditators reported less pain than the control group. “According to the authors, the study suggests it may be possible to reduce pain by ‘turning off’ certain areas of the brain during meditation” (The Zen of Pain). In a similar study, experienced meditators were exposed to painful laser zaps and scanned by MRI. Meditators reported less pain and showed more activity in an area of the brain associated with controlling attention and thought processes. The study suggests that meditators were focusing more on the present moment rather than pain. This indicates that meditation reduces the emotional response to pain (Rx For Pain).
What once started out as a way to achieve enlightenment is now being used for stress-reduction, treatment of mental and physiological disorders and spiritual involvement. Without fail, meditation has proved that it affects the mind and body in many ways. Whether one is a Buddhist monk or a cashier working at a grocery store, people who correctly practice meditation show the same positive effects throughout the mind and body. Although there are rare cases of psychosis from meditation, the majority of people who practice correctly benefit from it and these strange cases also make for good investigation. Perhaps one day one will hear their doctor recommend meditation to them.
Works Cited:
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Bhattacharjee, Yudhijit. "Neuroscientists welcome Dalai Lama with mostly open arms." Science 310.5751 (2005): 1104. Gale Opposing Viewpoints In Context. Web. 24 Nov. 2012.
"Compassion meditation may boost neural basis of empathy, Emory study finds." Mental Health Weekly Digest 15 Oct. 2012: 21. Gale Opposing Viewpoints In Context. Web. 24 Nov. 2012.
Fan, Ming, et al. "Mechanisms of white matter changes induced by meditation." Proceedings of the National Academy of Sciences of the United States 109.26 (2012): 10570+. Expanded Academic ASAP. Web. 24 Nov. 2012.
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Florida State University. "Uncommon features of Einstein's brain might explain his remarkable cognitive abilities." ScienceDaily, 15 Nov. 2012. Web. 3 Dec. 2012.
Gross, Amy. "Your Brain on Happiness." Newsweek 16 Jan. 2012: 35. Gale Opposing Viewpoints In Context. Web. 24 Nov. 2012.
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