palm
There are 86 acupoints and 224 odd acupoints of twelve normal meridians on the human hand, and the acupoints related to all organs of the body are concentrated in the hand.
The palm is connected with the front of the human body, and the back of the hand is connected with various organs on the back of the human body, so whether there is any abnormality in the body can be transmitted to all parts of the hand through meridians and acupoints.
Handshaking is the most common etiquette in the world, but it also reveals a lot of healthy information and personality. Therefore, it is very useful to master some hand diagnosis knowledge in practical communication.