Science2020sUnited Statesmedium confidence

In a study of approximately 4,800 U.S. adults aged 40 and older, taking 8,000 steps per day was associated with a 51% lower risk of all-cause mortality compared with taking 4,000 steps per day.

Notes on verification

Corroborated by multiple government and independent sources (NIH, NCI, NIA, ScienceDaily) all consistent with the original JAMA study (Saint-Maurice et al., 2020) using NHANES accelerometer data. [cascade flags: aggregator_dropped_primary_exists | tier=bronze indep_score=0.539 clusters=2 claim_tier=notable]

Sources