Li-fi is a bidirectional wireless system that transmits data via LED or infrared light, Li-fi can assist IoT (Internet of Things) in interconnecting all sophisticated medical devices and helps in leveraging data out of the various advanced waveform, Because of its ability to operate without any electromagnetic interface, it can assist IoT in aero-medical evaluation as also in underwater communications related to medical emergencies, Bidirectional wireless system, Assist IoT, Interconnecting all med devices, Electromagnetic interface, Aeromedical evaluation