A University of Wisconsin study revealed that after eight weeks of daily meditation, the brain can actually rewire itself, and the circuits that control levels of happiness can be altered. This is remarkable: it might be possible to train the brain to be better at feeling certain emotions, such as compassion. Dr. Richard Davidson, the researcher who
conducted these studies, stated, "By meditating, you can become happier, you can concentrate more effectively and you can change your brain in ways that support that" (BBC).
 
Neuroscientist, Dr. Sara Lazar, of Harvard University Massachusetts who conducts research as Mass General Hospital, used magnetic resonance imaging (MRI) to compare the brains of individuals who have meditated for years to those who have never meditated. Her research suggests that daily meditation can alter the physical structure of the brain and may even slow brain deterioration related to aging. It can even be responsible for the ways the brain responds to stress.  Research is also proving that, instead of brain cells ceasing to replace themselves and progressively die off after midlife, the brain actually forms new cells through a person's entire life. It is the actual opposite of the long- held theory. And it is called neurogenesis.
 
A lot of this research on the flexibility and the regeneration of the brain has been compiled and published by Wall Street Journal science columnist, Sharon Begley. In her book, Train Your Mind, Change Your Brain: How a New Science Reveals Our Extraordinary Potential to
Transform Ourselves, Begley cites cutting-edge experiments showing that in fact new neurons and neuronal pathways can be created in the brain everyday, even in people in their 70s. It is a fascinating exploration of the ways the mind can change the brain and features Tibetan Buddhist monks and their meditation practice. The forward is written by the Dalai Lama himself.
 
The Dalai Lama is happy to encourage participation in these research projects. He wants to promote meditation to those who are not necessarily religious, "It is the best method to deal with (negative) emotions," he said to HDTV reporter Dan Rather in a recent interview,
"Not for the next life, not for heaven, but for day to day's well-being."
 
Other research studies tout the benefits of meditation and youthfulness.  In the early 80's a published study showed meditators who had been meditating daily for at least five years were physiologically 12 years younger than their chronological age: their blood pressure was lower, their vision was better and they could hear more clearly. And those who
had only just recently begun practicing meditation were physiologically five years younger than their chronological age.
 
Research has also proven that meditators, as they age, secrete more of the youth-related hormone DHEA than non-meditators. Women and men in their mid forties had, on average, respectively, 47% and 23% more DHEA than non-meditators - DHEA helps decrease stress, heighten memory, preserve sexual function, and control weight. Low levels of DHEA have been linked with a variety of diseases and with increased mortality.
 
In a related study, Dr. James W. Anderson from the University of Kentucky, said meditation has been linked to lower blood pressure, reducing the risk of heart disease, stroke, congestive heart failure and kidney failure. As a result, those who practice meditation may also be able to avoid the possible side effects of using anti-hypertension
drugs.
 
So, what keeps people from meditating? First, it is rarely prescribed by a physician, though with the research findings popularized, that might change. Second, people don't really understand it. They are concerned they might have to become a Buddhist or Hindu, or change what they eat or what they wear. When in fact, all they have to do is set aside a
little time each day to sit still, in silence, with their focus inward.
 
There are many different variations of silent meditation, but the approach is similar: in order to meditate, one must sit still and bring his or her attention and focus to an object of meditation. This can differ - the focus can be on a certain sound, your breath, a feeling
such as compassion, a thought, a word, an image of a saint or deity, or even a candle flame. It is a habit that must be cultivated, and as we train the mind to focus, we can literally change the brain and in turn the body. Sounds simple? It is.