What is Resting Heart Rate?

Resting Heart Rate (RHR) is your heart rate when you are completely relaxed and not doing any physical activity, measured in beats per minute (bpm). It is an important indicator of cardiovascular health.

Key Characteristics

A lower resting heart rate generally indicates better cardiovascular conditioning — the heart can circulate adequate blood with fewer beats. Regular exercisers typically have lower resting rates due to stronger cardiac muscle capacity.

RHR is widely used in medical and physiological research as an important indicator for assessing cardiovascular health and heart rate variability.

Normal Ranges

For most adults, the normal resting heart rate is 60 to 100 bpm, though individual variation exists. Athletes frequently measure below 60 bpm. Elevated rates may correlate with lifestyle factors, aging, stress, or illness.

Single measurements can be misleading due to numerous influencing factors. Tracking long-term RHR trends provides more meaningful insights than isolated readings.

How StressMonitor Uses RHR

StressMonitor uses RHR as a secondary signal (30% weight) alongside HRV. An elevated resting heart rate — even when HRV appears normal — often accompanies stress, illness, poor sleep, or overtraining.

RHR Relative to Your Baseline	Signal
At or below baseline	No additional stress signal
5–15% above baseline	Mild additional pressure
>15% above baseline	Significant stress amplifier

StressMonitor compares your current RHR against your personal 30-day average, not a fixed number.

Where RHR Data Comes From

RHR is read from Apple Health. Your Apple Watch measures it during periods of stillness throughout the day. Note that resting heart rate reflects calm daytime heart rate, not sleep heart rate — wearing your watch overnight alone may not always produce a daytime resting reading. Readings are typically calculated by midday or afternoon.