Today let’s decode a study that takes something patients have suspected for years and puts real numbers behind it. That the data your wearable is collecting, heart rate, heart rate variability, breathing rate, is not just interesting background information. In people with Long COVID and ME/CFS, it may actually predict how you are going to feel later tha…
A Wearable Device Might Be Able to Predict a Crash Before It Happens - A New Study Tested This.
A 2026 study of 4,244 people with Long COVID, ME/CFS and other chronic conditions found that morning heart rate variability data could predict evening symptom severity with meaningful accuracy.
