Hypertension is one of the most widespread non-communicable diseases globally and a major risk factor for cardiovascular morbidity and mortality. Unhealthy dietary habits, sedentary lifestyle, stress, obesity, and poor sleep habits significantly contribute to elevated blood pressure. Recent research has highlighted that dietary and lifestyle modification is one of the most effective non-pharmacological strategies for preventing and managing hypertension. This observational study examines how changes in diet and lifestyle influence blood pressure levels among adults diagnosed with primary hypertension. The study synthesizes evidence from existing literature and presents an analysis based on observations from a sample group that adopted structured dietary and lifestyle changes for 12 weeks. Findings indicate a substantial reduction in systolic and diastolic blood pressure, improved BMI, enhanced sleep quality, and overall well-being. The study underscores the significance of adopting heart-healthy dietary patterns and lifestyle behaviors as a sustainable and accessible approach to hypertension management.