No mat needed

Though I don't do yoga, I'm on the mailing list for a yoga retreat place. Usually their brochures resemble catalogs for upscale yoga wear, full of young, great-looking, incredibly flexible folks practicing their asanas in idyllic settings. But this season it seems the organization is pursuing a different demographic: the brochure I received last week shows a middle-aged person wearing billowy clothes, relaxing in an Adirondack chair, listening to an iPod and doing what looks like a Sudoku puzzle.