Researchers have found in study after study that meditation can offer both mental and physical health benefits. Doctors of Chiropractic, other physicians and integrative health programs increasingly prescribe meditation techniques alongside traditional treatments to achieve a wide range of health goals, from increasing immunity to lowering high blood pressure and reducing the symptoms of irritable bowel syndrome. On the surface of things, meditation would seem to offer a variety of benefits-if it actually works. After all, it’s non-invasive, drug-free, and costs nothing. So how effective is it?
Approximately 500 clinical trials have been performed on the health effects of meditation, of which about 40 have been long-term studies. Short-term studies have found that meditation may reduce the risk of Alzheimer’s, and that it improves memory and general cognitive functioning.
Of the long-term studies, a nine-year study of African-Americans with heart disease found that those who regularly practiced Transcendental Meditation (TM) twice a day had a 48% lower risk of stroke, heart attack or death than those who had only receive health education. They reported significantly less stress and had 5mmHg lower systolic blood pressure.
Two studies from Ohio State University found that meditation was effective against cancer. The first showed that breast cancer survivors had a lower recurrence of the disease with the daily practice of relaxation meditation. The second found that meditation increased the elderly subjects’ “killer cells,” providing more resistance to viruses and tumors. Meditation has also been found to cause epigenetic changes by helping to maintain telomere length. Telomeres are the protective sheaths at the ends of our chromosomes, which become shorter as we age, increasing the risk of dementia, heart disease and cancer. A study published in the International Journal of Geriatric Psychiatry showed a 43% greater increase in activity of the enzyme that regulates telomere length in those who meditated as opposed to those who just listened to relaxing music.
Those suffering from irritable bowel syndrome will be glad to learn that meditating twice daily can significantly reduce symptoms of constipation, bloating and diarrhea. It has also been shown to reduce depression and impart a general sense of calm.