Few surveys of CAM use in cancer survivors have explicitly examined yoga use , and relatively little research has focused has focused on the characteristics of survivors who participate in yoga .As noted above even those studies that have examined yoga use have assessed yoga use only a yes/no response . however ,research has established several demographic variables that predict higher yoga use in the general population ,which also predict higher use is survivors: female gender ,normol weight/BMI ,and higher education level.regarding cancer-related characteristicts, only the analysis of the nurses health study examined this issue: no cancer or treatment variables ( e.g.,time since diagnosis,treatment type) related toyoga use in that study.