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 helped bring cardiac monitoring technology to market. Highlights Only ...

The Heart Rate Zone Formula Is Flawed, Especially For Women. Here's How To Rethink Your Training.

Watch says you’re in the red but body feels fine? You’re not imagining it. Discover why 220 minus age fails women and how to ...