Running a marathon used to be the high water mark of physical endurance, a notable life goal and an MBA resume builder. Now, it's just ordinary and pointless according to Will Dean, founder and CEO of Tough Mudder, a contest which bills itself as "the toughest one...

In the world of midwifery, it's "The Calling," that inner voice that guides some women to the profession and life they're meant to lead.

For Cara Muhlhahn, that meant helping women deliver their babies naturally, without drugs and in their home -- often in the bathtub. Muhlhahn gained fame...