Hand diagnosis is a diagnostic subject with a long history. Traces and achievements of research can be found in both eastern and western medicine. Hand diagnosis has become a specialized subject in contemporary times and has been widely used in life. The concept of hand diagnosis refers to a preventive and auxiliary means of reasoning about the evolution of human organs through the patterns, changes and laws of human hands.
I've heard of the hand diagnosis training of mobile games. It's really professional. You can understand it as soon as you listen.