Offering applications across a variety of areas, encompassing business, transportation, commerce, surveillance systems, healthcare, providing management of struggling people, disaster prevention, and many other, low - power wireless technologies have the ability to fundamentally alter how people live every day. Sensor network-based wireless usage throughout care and biomedical technologies have been receiving a growing amount of attention, but the accompanying privacy and security concerns continue to be open areas of discussion. There is reason to be optimistic about the potential application of this technology to our expanding senior citizen population as well as our healthcare systems, which are becoming more congested and demanding of patients' attention. However, in order for these systems to become a pervasive form of technology, healthcare providers and regulatory bodies will need to determine an adequate level of security and privacy. The primary purpose of this study is to gain an understanding of the application of wireless sensor networks that can be worn or implanted in the body for use in biomedical applications. Systematic literature review was the approach that was taken for this research. A huge increase in chronic diseases will need to be managed in the future healthcare system, which will have limited resources due in part to the ageing of the population. In this study, it was discovered that human behaviour monitoring, carried out by way of physiological measurement, is capable of being accomplished in an effective manner through the utilisation of wireless sensor technology. The provision of medical treatment will move out of hospitals and into communities, with individuals taking on a greater share of responsibility for their own health as a result of the proliferation of wireless technology.

wireless sensor networks; body area networks; wearable sensors; implantable sensors; healthcare applications; biosensors.