Dr. Alex Feng is my martial arts teacher since I was a child. He's also a Chinese medicine doctor, licensed acupuncturist, and Taoist leader. Once a month, in Oakland, California, he gives a talk about Taoism and leads a meditation. Now there are two videos of these talks online, and I'm pleased to be able to share them with you!
This is a long video, but at about the 31-minute mark he talks about centenarians, those who live to be 100 years old.
There are a couple common denominators. It's not about do you smoke; it's not about do you eat fish, or vegetable or zucchini or ling zhi or ginseng, or chicken or tofu, it's not about that. Do you drink alcohol, whiskey, wine, lime juice... it's not about that. It's about number one: can you still walk? Motility, mobility. That's why tai ji says, first things first: train your legs, train your foundation.
Two, interestingly enough, all the centenarians were still working. Working. Busy. They got things to do, places to go, hands to shake, babies to kiss... people to make contact with. There's service, they're still servicing. Selflessly. Wu wei.