Looking to get in shape, clients of all ages, shapes and sizes come to youthful fitness trainer Betsy Mendel. Mendel, who operates a business called No Excuses, has developed special insights into the training needs of her middle-aged clients. After arriving in Los Angeles from Atlanta five years ago, she fell in love with the sunny climate and found it the perfect place to indulge her fanatic workout habits in the great outdoors. Since 1999, she has been training full time, offering workouts suited to L.A. beaches, canyons and other outdoor spaces.