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.
whoop alternativefitness trackerrecovery trackingapple watchno subscription
Best WHOOP Alternatives in 2026: Free and Subscription-Free Options
WHOOP costs up to $360/year — and you don't even own the hardware. Here are the best alternatives that track recovery, strain, and sleep without the subscription.
Read more
how much sleep do you needsleep durationsleep qualitysleep tipsrecommended sleep hours
How Much Sleep Do You Need? Hours, Quality, and Tips
You've probably heard you need 8 hours of sleep. But the real answer is more nuanced — and the hours are only half the story.
Read more
hrvheart rate variabilityrecoverystresshealth tracking
What Is HRV? Heart Rate Variability Explained
Your heart doesn't beat like a metronome — and that's a good thing. HRV reveals more about your body than your heart rate alone ever could.
Read more
apple sleep scoreapple watch sleepsleep trackingsleep qualitywatchos
Apple Sleep Score Explained: What It Means and How to Improve It
Apple now gives your sleep a number — but what does it actually measure? Here's how the Apple Sleep Score works and what you can do to improve it.
Read more