When to Trust Your Health Score: Confidence, Cross-Validation, and the Limits of Wearable Data
Composite health scores fuse many inputs into one number — but only if you know which inputs are trustworthy. Confidence, cross-validation, suppression.
Composite health scores fuse many inputs into one number — but only if you know which inputs are trustworthy. Confidence, cross-validation, suppression.
Single metrics lie by omission. A composite score synthesizes HRV, sleep, training load, and recovery into one number — but only if you can see how it's built.