Xinyu is the name of the acupoint. The Yellow Emperor's Inner Canon Ling Shu: Back Shu. Heart Yu is the back Yu acupoint of the heart. Heart is the heart, and Yu is the infusion. This acupoint is the part where the heart qi is transferred to the surface of the back, hence the name Xin Yu.

【 Guijing Positioning 】
Gui Jing: Belongs to the Foot Sun Bladder Meridian.
Positioning: Below the spinous process of the 5th thoracic vertebra, with a lateral opening of 1.5 inches.
【 Functions and Indications 】
Function: To dissipate heat from the ventricles. The Xinyu acupoint has the functions of calming the heart and calming the mind, regulating qi and blood, widening the chest and regulating qi, and unblocking meridians and calming the mind.
Indications: The Xinyu acupoint is used to treat symptoms such as palpitations, forgetfulness, restlessness, epilepsy, mania, insomnia, coughing, and vomiting of blood; And rheumatic heart disease, coronary heart disease, tachycardia or bradycardia, arrhythmia, angina pectoris, etc.
Clinical Application
1: The combination of Xinyu acupoint with Juque acupoint and Neiguan acupoint is used to treat heartache and palpitations;
2: The combination of Xinyu acupoint, Neiguan acupoint, and Shenmen acupoint is used to treat insomnia and forgetfulness.
3: Xinyu acupoint combined with Juque: mainly used for treating heartache and leading back pain;
4: Xinyu acupoint combined with Shenmen and Sanyinjiao: treating insomnia, forgetfulness, and nocturnal emissions;
5: Xinyu acupoint combined with Taiyuan and Lieque: mainly used for treating cough and hemoptysis.
Modern treatment of rheumatic heart disease, tachycardia, atrial fibrillation, angina pectoris, coronary heart disease, neurasthenia, schizophrenia, epilepsy, and intercostal neuralgia often involves the use of the Heart Shu acupoint.