For my age group, sex, and fitness level is great today at 94 ms. But my average is around 40.

This is an interesting metric.

Health metrics are a good guide for outcomes and helpful to know yourself and motivate interest is health span or being fit and doing no harm.

Individually, a medical bill of good health varies from person to person or needs to be guide on the case by case bases.

For me, I attempt my best to do no harm. I like metrics as a guide to monitor my health span day to day and stay aware of my ups and downs.

All the best with your Health endeavours.

https://www.whoop.com/thelocker/normal-hrv-range-age-gender/