Compare with your own history
Compatible recent sleep, heart and optional vital evidence is compared with personal baselines rather than population cut-offs.
How BodyReserve thinks
One question. Four clear layers.
BodyReserve is designed to answer one question well: how much does your body appear to have in reserve, and what evidence shaped that estimate?
01 · The day-level view
Energy Reserve
A stateful estimate that connects overnight recovery, activity, workouts, physiological load and honest gaps across the day.
0.1.0-experimental · Experimental · iPhone Debug only
02 · The morning view
Morning Recovery
A 0–100 estimate of overnight restoration relative to your own recent baseline. Approximately 50 means around that personal baseline.
0.1.0-experimental · Experimental · iPhone Debug only
Treat 50 as personal baseline
Approximately 50 means around your recent baseline - not automatically poor Recovery.
Keep absence honest
Required missing evidence can withhold a result. Missing optional respiratory-rate or wrist-temperature evidence reduces coverage and confidence rather than becoming zero.
Recovery weighting
Six components, kept visible.
These experimental weights show how the six Recovery components currently contribute to the estimate. Each signal is evaluated against your personal baseline.
Weights and model version require launch review.
Heart-rate variability35%
Higher relative to baseline is positive
Overnight or fallback resting heart rate25%
Lower relative to its compatible baseline is positive
Sleep duration15%
Relative to the personal baseline
Sleep timing10%
Deviation from the person’s usual circular timing can reduce the result
Respiratory rate7.5%
Optional deviation signal
Sleeping wrist temperature7.5%
Optional deviation signal
03 · Discrete moments
Physiological stress
A discrete estimate built around eligible HRV evidence, strengthened by compatible nearby heart rate when available, with confidence reported separately.
0.1.0-experimental · Experimental · iPhone Debug only
Discrete HRV-first windows
Each eligible estimate begins with HRV compared with compatible personal history. It is timestamped rather than described as live.
Nearby heart rate can help
Context-valid nearby heart rate can strengthen the estimate when enough compatible evidence is available, but it remains optional.
Unsuitable context becomes a gap
Active, workout, post-workout, sleeping and uncertain windows can become explicit gaps instead of a fabricated neutral score.
Confidence is separate
Confidence describes evidence quality and maturity. It does not say whether a physiological-stress score is good or bad.