Medical Device Usage and Evaluation

This study seeks to determine if diagnosing cardiac autonomic dysfunction (AD) can be done remotely with the same accuracy as in-person testing. If so, the identification of AD could happen sooner, facilitating remote studies of the condition and potentially reducing the risk of illness. Childhood cancer survivors, particularly survivors of acute lymphoblastic leukemia (ALL) and Hodgkins's lymphoma (HL), appear to be at increased risk for AD. Primary Objectives: * To determine the sensitivity and specificity of heart rate variability (HRV), measured remotely with biosensor technology (Actigraph LEAP), compared to in-person assessment using the Ewing battery as the reference standard to identify cardiac autonomic dysfunction (AD) among survivors of leukemia and lymphoma. * To determine the sensitivity and specificity of the Composite Autonomic Symptom Scale 31 (COMPASS31) compared to the Ewing battery to identify AD among leukemia and lymphoma survivors.

This clinical trial evaluates the safety and feasibility of tumor treating fields (TTF) in the treatment of spinal leptomeningeal disease in patients with breast or lung cancer that has spread from where it first started (primary site) to other places in the body (metastatic). Patients wear the portable Novo TTF-200T device that produces electric fields to target areas on the body to stop the growth of tumor cells. The information from this study will help researchers develop a better treatment for leptomeningeal metastases in the future.

The goal of this randomized clinical trial is to learn if a healthy eating pattern called the MIND eating plan can reduce cancer-related cognitive impairment (commonly called "chemobrain") and other symptoms commonly experienced by women with newly diagnosed stage II-III triple negative breast cancer as they go through chemotherapy. The symptoms that will be measured include changes in memory and mental function, fatigue, sleep quality, anxiety, and depression. Researchers will compare measures from women in the 12-week MIND eating plan virtual intervention to a general health coaching (GHC) virtual intervention to see if the MIND eating plan helps reduce symptoms. Women will be contacted for follow-up measures 6 months after the 12-week interventions. Women randomly assigned to the GHC at the beginning of the study will have the opportunity to complete the MIND intervention after the 6-month follow-up. All study sessions and measures are done remotely. Participants will: * Be randomized to MIND or GHC interventions * Complete all study measures remotely (by online questionnaires, virtual visits and mail ) * Attend 8 virtual sessions of about 15-60 minutes each over 12 weeks * Be sent some of the key foods in the MIND eating plan during the MIND intervention * Be contacted for follow-up measures 6 months after interventions