Kidney yin deficiency and hyperactivity of heart yang are equivalent to heart-kidney disharmony in Chinese medicine (heart fire and kidney yin deficiency, dysfunction of the physiological functions of the heart and the kidneys), which is mostly caused by indolence in the bedroom or prolonged illness and fatigue. Heart-kidney disharmony refers to the deficiency of kidney yin, which spreads to the heart, and the function of yin fluid to restrain yang-heat is weakened, and the heart fire is thus hyperactive, and a series of symptoms are manifested. It is mostly related to labor, prolonged illness, and excessive sexual intercourse. Heart-kidney disharmony is characterized by heartburn, insomnia, forgetfulness, dizziness, tinnitus, lumbar and knee soreness and weakness (a feeling of soreness and weakness in the lumbar and knee regions), five heartburns and heat (heat in the hearts of the hands and feet, and self-consciousness of the heart and chest being irritated and hot), hot flashes (a burst of fever), and night sweating (unusual sweating after falling asleep, and stopping of sweating after waking up). Patients whose heart and kidney are not intertwined can take Ajiao Huanglian Tang Plus Reduction and Jiaotai Pill under the guidance of doctor for treatment, and it is recommended that patients seek medical treatment in time.