The Heart according to Chinese Medicine

The Heart according to Chinese Medicine

Chinese: 心      Pinyin: Xīn

Summary: The Heart's main function in Chinese Medicine is to govern the flow of Blood, the Blood vessels and houses the Spirit/ Mind (Shen - 神).

Zang or Fu: Zang

Organ taste: Bitter

The Heart functions

The Heart's main function in Chinese Medicine is to control the flow of Blood, the Blood vessels and houses the Spirit/ Mind (Shen - 神). The Heart is considered to be the most important of all the Internal Organs. It is referred as the "Emperor", ruling all the Organs.

According to TCM, the Heart 'opens' into the tongue, one of the body's 'orifices'. Therefore, a TCM doctor can judge the Heart's condition by examining a patient's tongue color, form and appearance.

A Heart Deficiency has both physical and psychological effects. Physically speaking, in the case of Heart Qi or Blood Deficiency, low energy, palpitations, shortness of breath or fainting can happen.

Psychologically the Heart houses the Mind and has an impact on the Emotion of Joy. Therefore, a Heart disease may cause the Mind to behave abnormally, such as depression, anxiety, insomnia, a high level of irritability or night sweats.

The Heart functions

"It governs Blood"

Very much like in Western medicine, the Heart regulates Blood circulation in the vessels, tissues and Organs. Although, in Chinese Medicine, other Organs, such as the Lungs, Spleen and Liver, also participate in the Blood circulation.When Heart Qi or Blood is Deficient, Blood circulation is weak. Thus the hands and feet get cold.

Heart Blood also impacts menstruation indirectly, despite that Liver Blood is the most important for the menstrual function. It is because the Heart controls the Blood releasing during menstruation. The heart is also the place where the Grain Qi (Food Qi) from the Spleen is transformed into Blood.

"It controls the Blood vessels"

Pushed by Heart Qi, Blood flows inside Blood vessels. If the vessels are in good condition and the pulse is full and regular, they indicate the healthy condition of Heart Qi and Blood. If vessels are weak, the pulse can be weak, irregular or thin.

"It houses the Spirit/ Mind (Shen-神)"

According to TCM, the Spirit/Mind is called Shen (神) and it is housed at the Heart. The Heart, referred to as 'Emperor', spreads the Shen throughout the body by the Blood circulation.

Strong Heart and sufficient Blood results in balanced mental activity, healthy emotional life, clear consciousness, strong memory, sharp thinking, and smooth sleep. However, if the Heart is weak and Blood is inadequate, mental activities are disturbed. Symptoms such as mental uneasiness and distress, insanity, abnormal behavior, excessive dreaming or insomnia, anxiety, and depression can appear.

"It manifests in the face"

The face is rich in Blood vessels, which are controlled by the Heart. Therefore, the Spirit /Mind (Shen-神)is shown in the face through its sheen and color. If the Heart is strong and Blood is sufficient, the face has a normal color with luster and moisture.

If the Heart is weak and Blood is Deficient, the face is pale and lusterless. If Heart Blood is Stagnant, the face will be purple or dark. If Heart Heat is Excessive, the face will be red.

"It opens into the tongue"

According to TCM, the tongue is connected to the Heart through the Heart Meridians, so the Heart conditions could be reflected by the tongue's colour, form and appearance, especially the tip of tongue. The sense of taste is also controlled by the Heart.

If the Heart functions properly, the tongue has a regular pale-red color, bright and have a normal shape. The sense of taste works properly as well. If the Heart function is not normal, Blood or Qi is Deficient and the tongue is pale and white with a thin shape. When Blood or Qi is Stagnated, the tongue is dark purple and ecchymoses appear. If Heart Heat is Excessive, the tongue could be red and has painful tongue ulcers.

"It controls sweat"

Blood and Body Fluids mutually exchange with each other. Body Fluids will enter Blood vessels to dilute the Blood if it is too thick. Since one of the Body Fluids is sweat, someone who is Deficient in Blood should not sweat heavily because it will consume the Blood further. This can cause a short breath and heavy heartbeats. Heart Yang Deficiency can cause sweating, while Heart Yin Deficiency causes night time sweating.

Popular sayings about the Heart

"The Heart loathes heat"

According to Chinese Medicine, Exterior Heat can not attack the Heart, but it could invade the Pericardium, which works as the guardian of the Heart. Since the Heart houses the Mind/Spirit, Heart Heat can lead to coma, delirium or aphasia.

"The Heart controls speech"

The Heart has an impact on speech ability in many ways. A Heart Fire condition may cause a person to talk a lot. However, sometimes Heart Qi Deficiency could also lead to that. On the other hand, Heat invading Pericardium can cause aphasia. Stuttering can be due to a Heart disharmony.