A few months ago, I decided to try to learn, at age 30, how to do handstands. I’ve tried and failed before. Even as a child in tumbling classes, I had so little arm strength that my instructor was ...

Several years ago, at age 60, Mona Weiger decided to give her son Kyle’s online fitness program a go. His video tutorials focused on mastering handstands—a move Mona “never dreamed I’d be able to do,” ...

FOR most of his life, Michael Comberiate has preferred to look at the world, as he says, upside down. With his hands on the ground and feet in the air, the retired NASA engineer has kept meticulous ...