In recent years, advances in wireless technology have unlocked new possibilities for health monitoring, moving beyond the need for direct physical contact or wearable devices. This chapter explores how widely accessible technologies, such as Wi-Fi and radar signals already present in our everyday lives can be harnessed to monitor vital health indicators. By measuring aspects like breathing, heart rate, movement, and sleep patterns, wireless signals provide a simple and seamless way to collect vital health information. This approach doesn’t require individuals to wear a device, carry a sensor, or change their daily routines. This kind of effortless monitoring is especially valuable for people who need regular, gentle check-ins on their health like older adults, those managing chronic conditions, or people dealing with neurological challenges. Using everyday signals like Wi-Fi, these systems can interact with the body by reflecting off or passing through it, picking up on even the smallest movements and changes in position. Through this process, sensors can provide real-time health insights directly from the comfort of a person’s own home. The current work will explore the underlying principles of these techniques, the benefits of contactless health monitoring, and the potential impact on personal health and healthcare systems alike. Machine learning models, can analyse this data to recognize normal patterns and spot early signs of potential health issues, like irregular breathing or changes in movement that may indicate disease progression. This kind of insight can lead to faster interventions and more personalized care. Since these systems rely on continuous data collection, privacy, security, and signal interference are important concerns. Looking to the future, advances in wireless technology may improve the accuracy and reach of these systems, allowing for more responsive and personalized health care. In summary, wireless, contactless sensing has the potential to bring healthcare closer to people’s lives. It offers an unobtrusive way to keep track of health and support wellness by using everyday technologies that many of us already rely on. This chapter explores how these innovations can transform health monitoring, making it a natural, seamless part of people’s routines.