The present study was designed with the aim to assess whether a non- pharmacological treatment [also termed "lifestyle modification"] program implemented by nurse in the hospital setting would improve blood pressure control in treated hypertensive patients. This study was conducted at Menoufyia University Hospital and Shebin El-Kome Teaching Hospital. Sixty hypertensive patients who met the study criteria were selected. Patients were randomly assigned to two equal groups, an experimental and a control group of 30 patients each. The experimental group was provided with verbal and written instructions about lifestyle modification through face to face counseling and monthly telephone call to remind them about the main instruction, while the control group was provided with only lifestyle modification written instruction. Data were collected by developed questionnaire, blood pressure [BP] measurements were obtained by the authors who used zero sphygmomanometer, weight was measured using a calibrated scale, and height was measured using a wall-mounted stadiometer. Each of these measurements was obtained 3 times, one baseline measure before intervention, and two times, at 3 and 6 months after intervention. Results Showed significant improvement in the lifestyle modification as well as in BP reduction among experimental group. It is recommended that all hypertensive patients should be encouraged to adhere to the non-pharmacological treatments since they are safe, inexpensive, and when combined with drug therapy may result in better BP reduction. Further study is needed to assess and train nurses about non-pharmacological treatment.