Apple looking to boost HRV features

where Apple need to go next with HRV-related features on the Apple Watch.

HRV – More than you ever needed or wanted to know

HRV - All you ever, ever, ever (did I say ever?) wanted or needed to know

My HRV-Guided Training Leading up to my HIM Race Day in 2021

the tech is better now on many levels. Here's a brain dump of positive tech goodness…