HRV and Resting HR are often viewed as separate metrics.
They’re not.
They are two different windows into the same system.
HRV tells you about:
• Nervous system balance
• Stress tolerance
• Recovery capacity
Resting heart rate tells you about:
• Cardiovascular strain
• Systemic stress
• Metabolic demand
When both move together, the message is usually clear.
When HRV trends down AND RHR trends up:
The body is under increasing stress and struggling to recover.
When HRV trends up AND RHR trends down:
The body is adapting well and becoming more efficient.
But sometimes they diverge.
For example:
• HRV rises but RHR rises or stays elevated
• HRV drops while RHR drops or remains normal
That doesn’t mean one is “wrong.”
It means the body is dealing with competing signals — often from training, life stress, inflammation, or poor sleep quality.
This is why chasing a single metric is misleading.
Your body doesn’t operate in silos.
Neither should your interpretation.