Add Yahoo as a preferred source to see more of our stories on Google. Woman checking running stats on her phone and sports watch Whether you're new to running and aiming for your first 5k, or you are ...

Bored of staring at the wall while running indoors? Virtual fitness tech now lets you explore global trails, join interactive races, and even train with AI-guided workouts—right from your treadmill.

A side-by-side comparison of the optimal maximal speed running gait of the Au. afarensis model with modern human-like tricep surae muscle architecture. Credit: Bates, Karl T. et al., 2025 Lucy is one ...