BOSTON (CBS) – It’s the hottest new craze in the fitness world, and Jennifer Kries joins Dan in the NightSide studio to talk about it. A program designed for private use in your own home, Kries says the focus on the body in its natural form provides a unique experience. Tune in to hear how she says it will build your confidence and appreciation for your body. Then call in and join the discussion! Would you be comfortable enough to do yoga naked?