Alessandro (Alex) shares many details about how keto-adapted diets can improve sports performance and affect heart rate variability (HRV). Alex discovered the use of HRV when he was searching for a way to measure the inflammatory response. Now that he has increased his HRV, Alex no longer suffers from overtraining syndrome and no longer injures himself by pushing too hard. A drop in HRV shows that something is taxing the body, perhaps the immune system.