A charming, low-key exercise/diet/cookbook from the actress best known for her role as writer/sleuth Jessica Fletcher on TV's popular Murder, She Wrote. Writing for the older set, Lansbury emphasizes the rejuvenating power of a positive attitude (""Keep your mind open and you'll never be bored""), boosting her good-natured psychological advice with hints on how to enliven your days (""If you take an activity that could be ordinary, and turn it into something special, you'll benefit""--e.g., transform a run-of-the-mill bath with soft towels, fragrant oils, scented candles, and soft music); a low-stress stretching routine and other exercise advice (walking, bicycling); some common sense about dieting, including a few recipes (for angel-hair pasta with fresh summer tomatoes, and a wheat-cereal/oat/bran bread); and a few beauty tips (on style: ""the simpler. . .the better""). With a few memories tossed in about wholesome values learned from her mother, and many photographs and line drawings, all woven together with evidently expert help from Premiere magazine contributing writer Avins, this gentle guide to the healthful life should appeal to a wide readership.