How strong is the evidence for Daily Step Count?

At least seven independent dose-response meta-analyses published between 2021 and 2024, including a synthesis of 15 international cohorts in The Lancet Public Health and an umbrella review, converge on a consistent pattern: higher daily step counts are associated with progressively lower all-cause and cardiovascular mortality risk, with the steepest risk reduction typically occurring between roughly 4,000 and 8,000 steps per day and more gradual additional benefit beyond that — meaning meaningful benefit occurs well below the popular 10,000-step target, which appears to have originated from a 1960s Japanese marketing campaign rather than research. That evidence is currently rated strong (88/100), built on 8 published studies, including 8 meta-analyses -- enough for real confidence in the effect.