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 ...
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The Results Don't Lie: Google's AI Is the Best Automated Health Coach I've Tried

A Gemini-powered personal health coach is available in preview for Fitbit Premium subscribers. I let it plan my workouts for ...