Anxiety and depression . A 2010 literaure review of the research on the use of yoga for treating depression said that preliminary research suggests that yoga may be effective in the management of depression. Both the exercise and the mindfulness meditation components may be helpful. However the review cautioned that "Although results from these trials are encouraging, they should be viewed as very preliminary because the trials, as a group, suffered from substantial methodological limitations." Attention deficit hyperactivity disorder . A 2010 Cochrane Review concludes that there is insufficient evidence to assess the effectiveness of meditative practices such as yoga in the management or improvement of attention deficit hyperactivity disorder (ADHD). Back pain . There is evidence that yoga may be effective in the management of chronic, but not acute, low back pain. Blood pressure . Although some evidence exists to suggest yoga might help people with high ...