Descriptive Observational Study of the Evolution of the Lifestyle Alteration in Patients With Breast Cancer

Patients will receive self-report questionnaires to evaluate their quality of life, fatigue level, anxiety and depression, cognitive complaint, cognitive efficiency, nutritional quality and food preferences, and sedentary behavior. Patients will also do tests to determine their physical conditions : six-minute walk test (6MWT), 30-s chair-stand test. The intervention will be done at three stages of the patient's care pathway: 1 / before the adjuvant surgery (baseline), 2 / at 6 months after the surgery and chemotherapy 3 / at 7 months after radiotherapy treatment.