These days it seems like yoga is as trendy as the fall window displays at Neiman Marcus. Would you like to try Hot, Happy, Baby or Boga? Everyone's doing it -- or at least trying to market it. Yoga's image in Western minds has morphed from "some weird cult" to "the latest thing." Hip hotels and clothing designers are redefining yoga as a "lifestyle." Whatev. While her sweet studio, YogaSource, is just two years old, Chris Yonker has seen it all evolve -- she's been a fixture on the St. Louis yoga scene for at least two decades. She has the deep intuition and strength of a great teacher, and her no-nonsense style is full of humor. A class with Chris or any of the other teachers at YogaSource is a perfect fit for the total beginner, expectant mother or type-A hot yoga fanatic. There are two studios (one is kept at a warmer temperature for those sweat-inducing Power Vinyasa classes), as well as private massage rooms and a full-service retail store for all of your yoga accessory needs. Do yoga. St. Louis will be an even better place.