Livity Blog
Health insights
from the Livity team
Deep dives into sleep science, HRV, fitness age, and the metrics that actually matter for your long-term health.
HRVheart rate variabilityrecoveryApple Watchhealth tracking
Heart rate variability (HRV) explained: what it is, why it matters, and how to improve it
Your heart isn't a metronome — and that's a good thing. The variation between beats is one of the most revealing signals your body produces. Here's what HRV actually means.
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Apple Health sleep score explained: what it measures and what it means
Your Apple Watch collected data while you slept — now what? Here's what every metric in Apple Health actually means and how to tell if your sleep is any good.
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