Understand restoration
Read sleep and recovery signals in context
Explore sleep quality, circadian patterns, readiness, HRV, fatigue and recovery without letting one score make the decision for you.
19 published guidesBrowse the complete library
Sleep & RecoveryPublished guides
Sleep & Recovery
19 results
Quick guideSleep, fitness, and recovery signalsLow HRVStart with your own baseline, measurement conditions, and repeated changes.
Quick guideSleep, fitness, and recovery signalsSleep ScoreLook beneath a score at duration, timing, consistency, and disturbances.Quick guideSleep, fitness, and recovery signalsSleep and recoveryConnect sleep patterns with how you feel and perform over time.
Quick guideSleep, fitness, and recovery signalsStress ScoreSeparate device estimates from the broader physical and emotional context.
Quick guideSleep, fitness, and recovery signalsTraining load and recoveryBalance recent work with adaptation, sleep, and readiness trends.
Quick guideSleep, fitness, and recovery signalsResting heart rateCompare sustained movement from baseline with symptoms and recent changes.
Quick guideSleep, fitness, and recovery signalsVO2 maxUnderstand an estimate in the context of fitness, protocol, and trend.
Quick guideSleep, fitness, and recovery signalsReadiness ScoreUse readiness to inquire about changes instead of following a single score.
Quick guideSleep, fitness, and recovery signalsWearable scoresA general framework for composite scores from different devices.
In-depth guideSupplementsMagnesiumAn evidence-based guide to magnesium benefits, dosage, forms, sleep claims, side effects, interactions, food sources, and who may actually benefit.18 min read
Quick guideWearable devices and notificationsApple Watch sleep apnea notificationUse the alert to prepare a better conversation with a qualified professional.
Quick guideWearable devices and notificationsApple Watch sleeping respiratory rateCompare repeated changes with baseline, sleep, and symptom context.
Quick guideWearable devices and notificationsOura Readiness ScoreBreak a composite readiness score into the trends beneath it.
Quick guideWearable devices and notificationsWHOOP Recovery ScoreUse recovery as a planning signal alongside how you feel.
Quick guideWearable devices and notificationsGarmin Body BatteryRead energy estimates against sleep, stress and recent activity.
Quick guideWearable devices and notificationsGarmin HRV StatusUse personal HRV baselines instead of comparing one number with others.
Quick guideWearable devices and notificationsFitbit Daily ReadinessConnect readiness with sleep, activity, and your recent baseline.
Quick guideWearable devices and notificationsPolar Nightly RechargeInterpret overnight recovery as a trend rather than a definitive conclusion.
Quick guideWearable devices and notificationsSamsung Health Energy ScorePut a composite energy score in sleep, activity, and recovery context.Explore more
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