According to historical records, Sun Simiao in the Tang Dynasty often used moxa leaves to moxibustion Zusanli point until he was over 100 years old.

There is also a folk saying that "Li San often doesn't do it if he wants to be safe."

In other words, moxibustion at Zusanli point can really enhance the immune function of human body and reduce the occurrence of diseases.

A Japanese 194-year-old man also taught this secret to the Japanese emperor:

It is moxibustion at Zusanli point for 8 days on the first day of each month, and every month, it will definitely ensure health.