Dr. Shigeaki Hinohara was a Japanese physician who gained much insight into his favorite question; what makes people live longer? He clearly practiced what he preached — he worked as a doctor until a few months before his death, at 105 years old.
His wisdom for longer life include some fairly intuitive points, and some not-so obvious ones.
https://medium.com/mind-cafe/a-105-year-old-japanese-doctors-guide-to-living-longer-1c713f07096c
Functional Medicine is a great approach to anyone who is looking to check in on their body’s biodiversity and apply preventative measure to ensure health as we age.