I came across a report about "How To Extend a Healthy Lifespan". I would like to summarize and share some of the interesting points here. The method is that you need to build up your physique so that you can walk until you are 100 years old. Ministry of Health, Labor and Welfare in Japan research says that the average number of steps by people per day at the age of over 20 is 6628 steps and 5659 steps in the case of males and females, respectively. Both males and females have been decreasing the number of steps they take for the past ten years. Walking enables our joints to keep moving smoothly and strengthen our muscles. It builds a virtual circle. On the other hand, staying still worsens our blood circulation and our muscles are stiff. That's why it is very important to walk in a lifespan of a century. Hence, we need to know about the balanced position of our ankles and to understand how to move our feet which maintains the shape of the tarsal tunnels correctly. The best practice is to walk while you squeeze your toes and the balls of the feet. Many Japanese used to wear Japanese wooden clogs called "Geta" even though we only now see them during summer festivals and so on. People had to squeeze their toes and balls of their feet when wearing their getas. I wore them when I was a little kid. So, it might be easy for us to imagine the method. I'm going to give it a try at work.