Dietitian Ashley Koff said she's focusing on better brain health in her 50s with habits like eating more fish, cutting out alcohol, and balancing blood sugar.
Scarlett Espinoza won a national Life Time Fitness challenge, lifting 7 days a week and transforming her diet for two months. Then she learned to make her routine sustainable long-term.
Mary Coroneos, a 100-year-old woman from Norwalk, Connecticut, regularly goes to the gym and socializes with friends from her long career as a teacher.
