Abstract: A vision commonly found in the research arena is to provide sensing and wireless communication for assisted living facilities, to improve lifestyle, to improve health care, and to support long term medical studies. Nowadays, Wireless Sensor Network research is being performed to address medical applications. WSN has put an enormous impact on medical healthcare in terms of reducing the patient’s risks of severity in emergency situations. This paper presents a centralized heart rate monitoring and an automated message alert system that employs a wireless body area sensor network (WBAN), which is an enabling technology for medical applications in this type of environment.