Many people spend their lives searching for the secret to longevity. For Dr. Howard Tucker, the answer was never hidden in complicated routines or impossible diets. The Cleveland neurologist, who remained professionally active past the age of 100, believed a meaningful life arrives from curiosity, emotional balance, and moderation.
Recognized by Guinness World Records as the “world’s oldest doctor,” Tucker remained inspiring people even in his final years. Before passing away on December 22, 2025, at the age of 103, he shared personal reflections in an essay for CNBC Make It about the habits and attitudes that helped shape his long life.
