Psychologist intervention: Patients will receive up to a one hour visit with a trained psychologist who will provide techniques aiming to reducing anxiety, such as relaxation exercises based on imagery and visualization, together with breathing exercises. Each patient will practice these exercises with the psychologist initially and at each cycle of chemotherapy and at home two to three times per week. The psychologist also provides suggestions on how to enhance and reinforce patients' motivation to comply with the exercise and nutritional aspects of the intervention.