It’s the fitness goal that launched a thousand step counters: 10,000 steps a day. Somewhere along the way, it became the gold standard of health — whispered between coworkers with Fitbits, posted on motivational Instagram stories, and silently judging us from our smartwatches.
But here’s the real question: does hitting 10,000 steps actually do anything magical for your health, or is it just a glori…