Inclusion Criteria:  Women with stage I-III BCa scheduled to undergo radiation therapy (RT) or within the first 12 months of having completed primary treatment (they do not need to have undergone RT) Underwent chemotherapy and surgery Able to read, write, and speak English BMI of 25 or higher 18 years of age or older Oriented to person, place, and time  Participants must meet at least two of the following criteria related to their lifestyle at the time of diagnosis:  Consume less than 3 servings of fruit and vegetable/day Engage in less than 75 minutes of moderate/vigorous intensity activity per week, defined as anything that causes small increases in breathing or heart rate for a sustained amount of time (e.g., brisk walking, bicycling) Engage in a mind-body practice less than 4 times a month Access to internet connection Access to a tablet, laptop or computer Able to come to University of Texas (UT) MD Anderson or Wake Forest for blood collection Able to perform light physical activity. if any medical issues exist or arise that may limit performing physical activity, a medical release will be required  Exclusion Criteria:  Have not completed chemotherapy; have a recurrent BCa diagnosis; another primary cancer diagnosis within past 5 years (not including non-melanoma skin cancers) Any major thought disorder (e.g., schizophrenia, dementia) Any major communication barriers that would preclude being able to complete the intervention (e.g., visually or hearing impaired) Poorly or uncontrolled diabetes in the opinion of the physician(s) Extreme mobility issues (e.g., unable to get in and out of a chair unassisted)