Yoga to Reduce Cancer Fatigue

Inclusion Criteria: * Potential subjects must have had histologically or cytologically confirmed breast cancer. This includes, but is not limited to: breast cancer-in situ; ductal carcinoma in situ; lobular carcinoma in situ; cystosarcoma phyllodes; inflammatory breast carcinoma; invasive breast carcinoma; and breast cancer not otherwise specified; cancer must be stage 0 through stage III. * Treatment completion within the past calendar year. * Age ≥ 18 years. While breast cancer can occur in the pediatric population, the pediatric population is best served by trials specifically designed for their age group. * Life expectancy of greater than 1 year. * Karnofsky ≥ 60%; see Appendix A. * Women of childbearing potential are eligible for this study. * Pregnant women are eligible for this study pending a doctor's note. * The ability to understand and complete the study questionnaires. * Ability to understand and the willingness to sign a written informed consent document. Exclusion Criteria: * Patients who have not recovered from adverse events due to agents administered more than 4 weeks earlier. * Patients with known metastasis. * Patients who are actively participating in a yoga class. * Known uncontrolled intercurrent illness including, but not limited to, ongoing or active infection, symptomatic congestive heart failure, unstable angina pectoris, cardiac arrhythmia, or psychiatric illness/social situations that would compromise subject health during yoga.