Nowadays, the Internet of Things (IoT) is widely recognized by analysts and researchers as the most sophisticated technology, which has potential to not only affect the safety, health, and productivity of many people but also has a big economic impact. It mainly consists of physical objects that are embedded with sensors, computing devices, actuators, and data communication capabilities. These are linked to networks for data transportation. Currently, portable systems for disease diagnosis and monitoring of human functional health are becoming more common.