Coping After Breast Cancer - a Randomized Clinical Trial With Two Digital Interventions

1. Breast cancer patients and age-matched controls are first invited to answer questions on HRQoL. 2. Among responding breast cancer patients, a subset are invited in a randomized clinical trial with two digital interventions for cancer stress management, cognitive based stress management (CBSM) and mindfulness based intervention (MBI), as well as a control group. 3. The goal is to determine whether digital CBSM or MBI can effectively reduce stress levels as compared to a control group. Second, whether these interventions can improve HRQoL (or avoid onset of HRQoL problems) for patients with breast cancer, compared to a control group.