 This research seeks to develop a culturally-acceptable, effective, and sustainable way of utilizing the rapidly growing penetration of mobile phones among people in Sub-Saharan Africa SSA, to improve the currently poor control of hypertension among patients at high risk for future stroke. It also aims to develop human capital in SSA to conduct locally-relevant, high-quality stroke research in the future. Specifically, this study will preliminarily test a strategy that incorporates mobile phone texting and home blood pressure monitoring directed by trained nurses, to improve patient adherence to proven medical therapies for treating hypertension. 