The Internet of Things (IoT) has the potential to transform healthcare dramatically via changing the way hospitals, clinics, and other healthcare facilities collect and use data. IoT can bring together major technical and business trends related to mobility, automation, and data analysis to improve patient care delivery. IoT is the networking of physical objects such as on-board sensors, actuators, and other equipment that collect and transmit activity information in real-time across the network. The data collected from these devices can then be analyzed by the organization to improve patient care. That is, we can use the collected data to offer new services or improve the already existing services. IoT will enable health organizations to manage data in such a way that would make them able to differentiate themselves from their competitors. However, there are some vulnerabilities in practice that would make the use of IoT data infeasible such as False data injection attacks. In this paper, we aim to investigate false data injection attacks, its impact on healthcare, and how to detect and prevent such attacks.