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New research from Apple's Heart and Movement Study reveals how consistently closing your Activity rings is linked to better sleep, lower resting heart rate, and reduced stress levels.

Your Apple Watch is more than a timepiece — it's a heart health monitor. Explore 5 key features including ECG, AFib History, VO2 Max, and heart rate notifications that help you stay on top of your cardi...

Your Apple Watch tracks HRV — one of the most powerful health metrics available. Here's what it means, why it matters, and how to use it to optimize your well-being.

The Apple Watch packs five powerful heart health features — from VO2 Max tracking to AFib History. Here's what they do and what experts say about them.