Heart yin deficiency is mostly caused by too much thinking and laboring, dark depletion of heart yin; or warm and hot fire, burning heart yin; or liver and kidney yin deficiency, which can’t be nourished upwards and affects the heart yin. Patients may suffer from palpitation (accelerated heartbeat, often accompanied by panic), insomnia, dreaminess, dry mouth and throat, emaciation, or heat in hands and feet, hot flashes (a burst of heat), night sweating (abnormal sweating after going to sleep, and sweating stops after waking up). American ginseng is the root of American ginseng of the family Wujiaceae. It is sweet, slightly bitter and cool in nature, and belongs to the heart, lung and kidney meridians. It has the efficacy of tonifying qi and nourishing yin, clearing heat and generating fluids, and is used in treating qi deficiency and yin deficiency, deficiency heat and tiredness, coughing and wheezing, phlegm and blood, internal heat and thirst (internal fever accompanied by symptoms such as eating more, drinking more and urinating more), and dry mouth and pharynx. The adverse effects of this drug are not known. It should not be used with quassia. Radix Panax Ginseng is cool in nature and enters the heart meridian, with the effect of nourishing yin, it can be used for heart yin deficiency. If there is a need for medication, it is recommended to use it under the guidance of a professional physician, not blindly self-medication.