US MD survey shows # active MDs grew 33% to 923 419 (2001-2021). But AVG weekly work hrs declined 7.6% (53 to 49 hrs/wk). Decline driven by MD males/Fathers (-12%), rural MDs, 45-54 yrs old MDs. Only MD mothers had signif. increase in work hours (+3%) https://t.co/1CR2ERPX5e https://t.co/at0RJpcTEp