Heart-kidney disconnection refers to a malfunction in the physiological relationship between Heart-Yang and Kidney-Yin, such as a deficiency of Kidney-Yin or disturbance of Heart-Fire, where the two lose their harmonious relationship. It is mostly caused by a deficiency of Kidney-Yin and the inability of Yin essence to be carried upward, and thus the Heart Fire is hyperactive and fails to descend. The heart is in the upper jiao, which is fire; the kidney is in the lower jiao, which is water. The Yang in the Heart descends to the Kidney to warm the Kidney Yang; the Yin in the Kidney ascends to the Heart to nourish the Heart Yin. Under normal circumstances, Heart Fire and Kidney Water are to rise and fall in harmony with each other and maintain a dynamic balance with each other’s traffic. The heart and kidney do not intersect with the cause of the five elements of Chinese medicine theory, the heart is fire, the kidney is water, the heart fire must descend to the kidney, so that the kidney water is not cold; kidney water must go up in the heart, so that the heart fire is not hyper, known as the heart and kidney intersect, or water and fire together. If you are chronically ill or overthinking, depressed and hyperactive heart fire, you will be disturbed. Downward depletion of kidney water, loss of yin fluid moistening, or too much use of the kidney, then lumbar acidity, dizziness, forgetfulness (the brain marrow is replenished by the kidney). The Kidney-Yin is insufficient and the Kidney-Yang is relatively hyperactive, so you will feel heat in the palms, dry throat and mouth, red tongue and other signs of false (deficiency) heat. Heart fire reaches down to kidney water, kidney water helps heart fire so that kidney water is not cold and heart fire is not hyper, then water and fire help each other and heart and kidney meet. If the kidney water is insufficient and the heart fire is not helped, then the heart fire is hyperactive, or the heart fire alone is incandescent and draws down the kidney water, then the kidney yin is darkly depleted, so that the kidney water is deficient in the lower part and the heart fire is hyperactive in the upper part, and the heart and kidney do not intermingle. 1.Long-term illness injures yin; 2.Overuse of kidney; 3.Thinking too much; 4.External heat illness. Symptoms of non-intercourse between the heart and kidney are mainly characterized by kidney yin deficiency and heart fire exuberance. Clinical manifestations are: disturbed sleeplessness, palpitations, dizziness, tinnitus, forgetfulness, fever in the five hearts, dry throat and mouth, soreness and weakness of the waist and knees, spermatorrhea, red tongue, fine pulse, insomnia, excessive dreaming, false annoyance, spermatorrhea, etc. It is mostly seen in neurosis and chronic patients or sub-health. This syndrome should be distinguished from hyperactive heart fire syndrome, which is characterized only by symptoms of hyperactive heart fire such as irritability and sleeplessness, without symptoms of kidney yin deficiency. This disease has both symptoms of hyperactive heart fire and symptoms of kidney yin deficiency. Daily prevention 1, if the heart and kidney insomnia is serious, the environment should be kept quiet, the room should be clean, the temperature and humidity should be appropriate. 2, usually keep the pubic area clean, dry, wide underwear, should not be too tight, sleep at night can not make the pubic area too warm. 3, unmarried male youth masturbation, often the heart and kidneys are not the cause of spermatorrhea, as far as possible to quit the vice of masturbation.