By my former colleague at the University of Chicago, John Schumann: Keep Things Simple For A Healthy, Long Life:
1. Get enough sleep.
2. Move your body throughout the day.
3. Eat well — a healthy assortment of foods. Mostly plants, and not too much.
4. Interact socially. Isolation is not good for the body, soul or mind.
5. Take some time to reflect on what you are grateful for.
Interventions that promote longevity, remembered by mnemonic: DEEP purple - “eat colorful plant foods: Dietary modification, Exercise, active Engagement, Purposeful living (click here to enlarge the image).