Why we track Resting Heart Rate (RHR)?

Resting Heart Rate (RHR) is a key indicator of your body’s current physiological state.

It represents how efficiently your heart functions when you’re at rest — in other words, how much effort your body needs to maintain basic functions.

When evaluated together with Heart Rate Variability (HRV), RHR provides essential context for understanding your stress–recovery balance. A temporary increase in RHR often signals sympathetic activation, meaning your body is under physical load, emotional stress, or fighting fatigue or illness.

Conversely, a lower RHR usually reflects parasympathetic dominance — a state of good recovery, fitness adaptation, and calm.

By analyzing daily RHR patterns alongside HRV trends, Welldo can more accurately detect whether your body is adapting well or showing signs of accumulated stress.

This combination creates a more comprehensive and reliable Daily Stress Score, grounded in both cardiovascular and autonomic system responses.