Heart qi deficiency and cold, generally refers to the lack of heart yang, common manifestations are panic, palpitations, sometimes there will be arrhythmia, premature beats or arrhythmia. In serious cases, there will also be the performance of baffled, that is, easy to be timid, afraid of things, can not stand a little shock. The reason for these manifestations is due to the fact that the heart is the master of the mind and the heart hides the God. At the same time, sweat is the liquid of the heart, will also be manifested as excessive sweating, shortness of breath, fatigue, some people will also be manifested as insomnia, dreamy, fear of cold, easy to wake up. Serious people may also suffer from angina pectoris, which is also known as chest paralysis and heart pain in Chinese medicine, and a series of manifestations such as cold limbs, cold sweating, dizziness, or mental agitation, irritability and discomfort.