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Yoga appears to lessen symptoms of depression

From News Medical - August 3, 2017

Multi-week regimen may be an effective complement to traditional therapy, multiple studies suggest

People who suffer from depression may want to look to yoga as a complement to traditional therapies as the practice appears to lessen symptoms of the disorder, according to studies presented at the 125th Annual Convention of the American Psychological Association.

"Yoga has become increasingly popular in the West, and many new yoga practitioners cite stress-reduction and other mental health concerns as their primary reason for practicing," said Lindsey Hopkins, PhD, of the San Francisco Veterans Affairs Medical Center, who chaired a session highlighting research on yoga and depression. "But the empirical research on yoga lags behind its popularity as a first-line approach to mental health."

Hopkins' research focused on the acceptability and antidepressant effects of hatha yoga, the branch of yoga that emphasizes physical exercises, along with meditative and breathing exercises, to enhance well-being. In the study, 23 male veterans participated in twice-weekly yoga classes for eight weeks. On a 1-10 scale, the average enjoyment rating for the yoga classes for these veterans was 9.4. All participants said they would recommend the program to other veterans. More importantly, participants with elevated depression scores before the yoga program had a significant reduction in depression symptoms after the eight weeks.

Another, more specific, version of hatha yoga commonly practiced in the West is Bikram yoga, also known as heated yoga. Sarah Shallit, MA, of Alliant University in San Francisco investigated Bikram yoga in 52 women, age 25-45. Just more than half were assigned to participate in twice-weekly classes for eight weeks. The rest were told they were wait-listed and used as a control condition. All participants were tested for depression levels at the beginning of the study, as well as at weeks three, six and nine. Shallit and her co-author Hopkins found that eight weeks of Bikram yoga significantly reduced symptoms of depression compared with the control group.

In the same session, Maren Nyer, PhD, and Maya Nauphal, BA, of Massachusetts General Hospital, presented data from a pilot study of 29 adults that also showed eight weeks of at least twice-weekly Bikram yoga significantly reduced symptoms of depression and improved other secondary measures including quality of life, optimism, and cognitive and physical functioning.

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