World’s oldest woman, 115 years old, swears by this one rule for a long life

World’s oldest woman, Ethel Caterham at 115, attributes her longevity to a simple rule: avoiding arguments and prioritizing personal autonomy. Born in 1909, she navigated global changes with calmness, a trait linked to emotional well-being and reduced stress. Her life, marked by travel and resilience, underscores the importance of inner peace and joyful experiences for lasting health.