There are 6 meridians in the hand. The main ones include the Hand San Yin meridian and the Hand San Yang meridian.
Hand San Yin is from the chest to the hand (Hand Taiyin Lung Meridian, Hand Syncope Yin Pericardium Meridian, Hand Shao Yin Heart Meridian), which runs on the inner side of the arm and terminates at the end of the fingers; Hand San Yang is from the hand to the head (Yangming Large Intestine Meridian, Hand Shaoyang Sanjiao Meridian, Hand Sun Small Intestine Meridian), which runs on the outer side of the arm and starts at the end of the fingers. Each meridian serves a different purpose.
All three yin meridians of the hand treat chest disorders, such as chest tightness and asthma; all three yang meridians of the hand treat throat disorders as well as heat disorders. For example, sore throat. The organism through the meridian internal connection viscera, external contact joints, so that the qi and blood running, meridians can reflect the disease, but also able to treat the disease.
Therefore, in daily life, you can massage your fingers and arms, and play the role of unclogging the tendons and bones, disease prevention and health care. If there is arm numbness and other uncomfortable symptoms, it is recommended to seek medical attention in a timely manner, so as not to delay the condition.