Inclusion Criteria:  Black women with a diagnosis of stage 0-IV breast cancer and within a month of treatment initiation or with 6+ months of treatment left OR Black men with a history of prostate cancer who are on long-term androgen deprivation therapy; Blood pressure >=120/80 OR diagnosis of diabetes Individuals who develop these conditions during treatment such as those scheduled to initiate steroid-containing chemotherapy or targeted PI3K inhibitor therapies Access to a smartphone and/or internet for the duration of the study. Can understand and communicate in English  Exclusion Criteria:  - Unwilling to participate in a 6-month study