This podcast episode sheds light on High Intensity Interval Training (HIIT), its historical roots, and its role in enhancing longevity. HIIT's origins can be traced back to the 1800s with the advent of fartlek training, and its various forms, including Tabata training, have since gained prominence. While HIIT and Sprint Interval Training (SIT) share similarities, their definitions differ, with SIT requiring supramaximal efforts. The episode emphasizes the need for clarity in HIIT protocols, and it addresses key questions surrounding its implementation, making it a valuable resource for those interested in incorporating HIIT into their fitness routines.