Abstract: A wireless Sensor Network system is having potential to monitor the Human Health, Structural health monitoring for building, bridges. In this paper a survey on Human health monitoring & Structural health monitoring is shown by using wireless sensors network. Different applications by wireless sensors for healthcare system are discussed. Technical challenges regarding health care system is explained. Application of ubiquitous for structural monitoring also explained. The advantages & applications of wireless Sensor Network system also discussed. This paper is purely a survey of earlier work of different Authors.

Keywords: Wireless Sensor Networks, Ambient Health Monitoring, Structural Health Monitoring, Personal Health Monitoring, Technical Challenges.