WISDOM RUNNING

Measure your steps per minute and decide whether a small increase is worth trying. Learn why 180 isn't a universal target, how to practice with a metronome or simple cue, and when to leave your cadence alone.

There is no single right way to breathe while running. See what research says about nose vs mouth breathing, belly breathing, step rhythms and side stitches, plus the signs that mean you should see a doctor.

Running adds a little muscle, mostly for beginners and mostly in the thighs. Learn which muscles it works, when it can cost you muscle, whether it hurts lifting gains and how to build muscle while you keep running.