health
At 103 years old, I’m the ‘world’s oldest doctor’: My 3 rules for a long, happy life are so simple—I tell it to 'all my patients'
Dr. Howard Tucker left behind an impressive legacy. At 103, he was named the oldest doctor in the world — and quite possibly the happiest. Shortly before passing away, he shared his rules for living a long, happy and healthy life. They're very simple, he says.

TL;DR
- A 103-year-old neurologist shares his three key principles for a long and fulfilling life.
- Principle 1: Keep your mind engaged, as it is like a muscle that weakens if not used.
- Principle 2: Do not carry hatred or resentment, as they consume energy and harm the person carrying them.
- Principle 3: Enjoy everything in moderation to make enjoyment sustainable over the long run.
- The doctor continued practicing and learning new skills, such as law and social media, well into his later years.
- He emphasizes that staying mentally active, letting go of bitterness, and enjoying life in moderation are essential for well-being.