Relaxation for Women With Breast Cancer Undergoing Radiotherapy

The goal of this behavioral research study is to compare two different forms of relaxation programs that will include stretching and relaxation techniques, in order to learn if and how well they may help to improve physical and emotional well-being. This will be tested in patients with breast cancer who are receiving radiation therapy. For comparison purposes, there will also be a group of participants that does not take part in the relaxation programs. This is an investigational study. The relaxation programs are being compared for research purposes only. An "assessment" is any time you complete a set of scheduled activities for this study, such as tests and questionnaires. Up to 700 patients will take part in this study. All will be enrolled at MD Anderson.

Inclusion Criteria: 1. Women with stage 0 - III breast cancer who will be undergoing daily adjuvant radiation for 4-6 weeks (patients only). 2. 18 years of age or older (patient and spouse/partner). 3. Able to read, write, and speak English or Spanish (patient and spouse/partner). Exclusion Criteria: 1. Patients who have any major psychiatric diagnoses (e.g., schizophrenia, bipolar disorder). 2. Patients who have not undergone any surgical treatment for their cancer. 3. Patients with extreme mobility issues (e.g., unable to get in and out of a chair unassisted). 4. Patients who have practiced yoga or taken yoga classes in the year prior to study enrollment or who are currently engaged in a regular mind-body practice.