Recent Trend in Tech Research is to use WiFi to track humans

An interesting trend has been noticed in the academic research community. Google Scholar shows that when searching for the term “WiFi” and sorting by most recent (since 2025) a significant number of research topics focus on monitoring human activity using WiFi. The acronym HAR appears frequently throughout these papers and stands for “Human Activity Recognition”. The “human activity” that will be monitored varies from simple occupancy detection to monitoring a persons breathing.