Was Derek Chauvin's use of force against George Floyd justified? The former police officer's attorney said yes, pointing to a controversial syndrome known as "excited delirium" to explain Floyd's frenzied behavior while in custody. Does this defense withstand scientific scrutiny? Meanwhile, 10,000 steps: it's a magic threshold often used to pinpoint fitness, but there's little evidence behind this popular idea.
Ten thousand steps for exercise and health, much like ten thousand hours to become an “expert,” are magic quantifications passed down without clear origins. Some researchers sought some scientific clarity.