Apple Watch health features everyone should know about: Sleep, heart health tracking and more

Your Apple Watch does more than tell time. It tracks your sleep, monitors heart health, and helps manage medications.
The Healthy @Reader's Digest on MSN

I'm a heart doctor—here are the 5 health metrics I'd never trust to my smart watch

Dr. Wessler is a self-confessed health tracking enthusiast and has also participated in large-scale clinical trials that ...