For all the women who look down on their ample thighs with loathing: Fret no more. There is new reason to love that dimpled plumpness. For many people, mainly women, fat on legs, hips, and buttocks may actually help ward off heart disease and diabetes, recent research suggests. University of Colorado researchers reported this week that in a study of 95 women past menopause, being bottom-heavy was linked to better scores on several ominous markers in the blood, including triglycerides and high sugar levels. When women were also heavy above the waist, most advantages of the leg fat vanished, but...