Sleep
Resting Heart Rate Illness Drift
Resting heart rate illness drift is a multi-day morning HR rise despite flat training load—pair with HRV and temperature before you push planned hard sessions.
Resting heart rate illness drift is a multi-day rise of five to fifteen beats per minute above your normal morning baseline while training load stayed flat—classic pre-illness or overreach signal on wearables. Dehydration, poor sleep, and alcohol also lift resting HR, so check context.
When drift pairs with HRV suppression and temperature deviation, swap hard sessions for rest before full symptoms. Return gradually when HR normalizes three to five mornings.
Common questions
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How many beats of resting HR rise is concerning?
Context matters—five to fifteen beats above your norm for several mornings with other suppression signs warrants easier days. Single jumps after late wine or poor sleep differ.
Related terms
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