Feeling great has become a new hobby for Ms. Juska in the 10 years since her retirement. She now lives in Berkeley and has lived in the Bay Area since the mid-1950's. After her divorce in 1972, she raised her son, Andy, now 38, as a single mother with no help from his father, she said. "My ex-husband wanted me to just collapse intellectually," she recalled. "Whether the topic was the weather, politics or rent increases, he was always argumentative."