Yoga Hits the Halls of Medicine

The ancient practice of yoga is increasingly finding a new following -- among doctors and medical researchers who are working to prove its benefits for a variety of illnesses.

Researchers at University of North Carolina Hospitals are studying yoga's benefits for people with irritable bowel syndrome. Doctors at Duke University recently completed a study showing that yoga provided significant improvements with hot flashes, sleep and energy levels for postmenopausal women with early breast cancer.

And in eastern North Carolina, an oncologist in Beaufort County sees improvement in his patients who take yoga classes.

"There's been an explosion of data using yoga as a treatment option," said Shelley Wroth, an obstetrician at Duke Integrative Medicine and a yoga teacher.

She said studies have found that yoga helps people suffering diseases such as hypertension, anxiety, arthritis, chronic back pain, carpal tunnel syndrome, fibromyalgia, stress, depression, diabetes and epilepsy -- among others.

"It shows so much promise," Wroth said.

A recent study at Duke involved breast cancer patients who were experiencing severe hot flashes and other menopause symptoms. Because of their illness, they were prohibited from taking hormone replacement therapy, so yoga was proposed as an alternative. The study found significant improvement among the women in the study who took yoga classes compared to another group of women who did not.

"There's a lot of reactions to stress that exacerbate the menopausal symptoms," said Laura Porter, co-author of the Duke study. "Yoga -- the physical poses and the more cognitive aspects of it -- dampens the stress reactivity." But even as the science establishes yoga's benefits, less is known about why it is helpful. Porter and others postulate that the practice reduces stress through stretching poses, practiced breathing and meditation. For people battling illness, stress reduction might pack extra potency. "A lot of our diseases have some sort of origins in stress and the stress reaction," said William Frey, who is leading a yoga class at Rex Healthcare in Raleigh, N.C., as part of a UNC-Chapel Hill study among patients with irritable bowel syndrome. "By taking care of stress, you're starting to eliminate some of the diseases that are caused by it." Frey said he began offering yoga eight years ago through UNC-CH's Program on Integrative Medicine. "There was some concern we might be bringing spiritual elements into a very clinical setting," Frey said. "Getting the word out was difficult -- so much else was going on that was scientifically based, this was pushed off. But as people have seen its staying power and see the results and research, there's beginning to be more respectability."
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