It is true that researchers are continuing to study the beneficial effects of a regular yoga practice on depression (and many other health challenges as well). The breathing techniques part of many yoga practices (called pranayama) are often shown to have a high success rate in treating clinical depression symptoms. That being said, there are specific yoga poses can be good for treating depression including Sun Salutation, Backbends, Extensions and certain Head and Neck stands. To read more about these poses and how yoga works on treating depression, click on the following article: Depression and Yoga