A five-minute block yoga sequence focuses on upper body strength, with repeated drills for the arms, shoulders, and core. The practice is described as a quick and intense way to build serious strength ...

A U.S. Air Force senior airman competes in a weightlifting competition Dec. 7, 2019, at an undisclosed location in Southwest Asia. (Senior Master Sgt. Ralph Branson/U.S. Air Force photo) Block ...