The document outlines the diagnosis and management of hypertension, defining it as systolic blood pressure of 140 mmHg or greater or diastolic blood pressure of 90 mmHg or greater. It categorizes hypertension into essential and secondary types, discusses risk factors, clinical manifestations, blood pressure measurement techniques, and treatment options including lifestyle modifications and pharmacologic therapies. It emphasizes the importance of managing hypertension to prevent associated complications such as heart disease, stroke, and kidney failure.