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 ...
The Debrief

A Century Later, Ramanujan’s Pi Equations Are Helping Physicists Unlock the Secrets of Nature

In 1914, Indian mathematician Srinivasa Ramanujan published a short paper detailing several unusual formulas for calculating ...