In the still of the night, when body and mind should be settling into rest, some people invariably find themselves being chased, falling, or facing peril in their dreams. They jolt awake with their heart pounding as if it might leap from their throat, cold sweat soaking through their clothes. The ancients called this experience "nightmare" (meng yan), and the Huangdi Neijing recorded long ago: "When the hun and po are unsettled, nightmares occur." The hun is stored in the liver and governs the tranquility of the night; the po is stored in the lungs and governs the convergence of breath. When the hun and po lose their posts, nightmares come like uninvited guests, repeatedly knocking at the door of sleep. What bodily secrets lie behind always having nightmares during sleep and waking in fright with a pounding heart?
Traditional Chinese medicine holds that sleep is a process of yin and yang in harmonious union. When yang enters yin, one sleeps; when yang exits yin, one wakes. Waking from nightmares with unceasing palpitations is often an external manifestation of disharmony between yin and yang and dysfunction of the zang-fu organs. It reminds us that some link in the body is sending out a signal.
Insufficient Liver Blood, the Hun Without a Home — The First Hidden Door of Nightmares
The Lingshu · Benshen states: "The liver stores blood, and blood houses the hun." When liver blood is abundant, the hun can safely return to its dwelling, and one naturally sleeps peacefully at night. If liver blood is deficient, the hun is like a traveler with no home to return to, drifting restlessly through dreams, and frightful dreams easily arise.
In clinical practice, such individuals often present with dry eyes, brittle and thin nails, and a tendency toward tension and anxiety. The causes of insufficient liver blood are varied. Staying up late over the long term most damages liver blood, because nighttime is originally the time for liver blood to return and be stored. Excessive worry also consumes blood: "Excessive thinking damages the spleen; if the spleen fails to generate blood, the liver has nothing to store." In addition, blood loss during menstruation and improper postpartum care in women can also easily lead to the predicament of liver blood deficiency.
In meridian theory, the pathway of the Foot Jueyin Liver Meridian is closely related to this type of problem. Taichong, also known as Dachong, belongs to the Foot Jueyin Liver Meridian and is the yuan-source point and shu-stream point of the liver meridian. It is located on the dorsum of the foot, between the first and second metatarsal bones, in the depression anterior to the junction of the metatarsal bases. The Lingshu · Jiu Zhen Shi Er Yuan states: "When the five zang have diseases, one should select from the twelve yuan-source points." Taichong is where the meridian qi of the liver meridian converges, and it is closely related to the liver's functions of governing free flow of qi and storing blood to house the hun. When the qi and blood of the liver are harmonious, the hun has a place of peace; when the qi and blood of the liver are disharmonious, the spirit and po are disturbed, and night dreams are restless.
If you always have nightmares during sleep and wake in fright with a pounding heart, and if this is accompanied by a sallow complexion, dizziness, and blurred vision, it is most likely related to insufficient liver blood. At this point, the direction of regulation should focus on nourishing blood and softening the liver, giving the hun a place to return to, so that nightmares naturally decrease. Suitable food ingredients include mulberry, red dates, and goji berries, which may be consumed in moderation daily. However, it must be noted that individual differences determine the specific plan, and it is advisable to proceed under the guidance of a licensed TCM practitioner.
Heart-Kidney Disharmony, Water and Fire Failing to Assist Each Other — The Deep Entanglement Behind Startling Palpitations
If insufficient liver blood is "the hun without a home," then heart-kidney disharmony is "the spirit-mind unsettled." The heart belongs to fire, is located in the upper jiao, and governs the spirit-mind; the kidney belongs to water, is located in the lower jiao, and governs the storage of essence. Under normal conditions, heart fire descends to warm kidney water, and kidney water ascends to nourish heart yin, forming a harmonious state of water and fire in mutual assistance.
Once this balance is broken, with heart fire hyperactive above and kidney water congealed cold below, a person will suddenly wake from sleep with palpitations like beating drums. The Shanghan Lun mentions "palpitations in the heart with vexation," which is precisely a typical portrayal of heart-kidney disharmony.
In TCM meridian theory, there is an acupoint closely related to the tranquility of the heart spirit. Shenmen, also known as Duigu and Zhongdu, belongs to the Hand Shaoyin Heart Meridian and is the yuan-source point and shu-stream point of the heart meridian. It is located in the anterior wrist region, on the radial side of the tendon of the flexor carpi ulnaris, on the distal transverse crease of the palmar wrist. The Suwen · Linglan Midian Lun states: "The heart is the official of the monarch, and the spirit-mind emerges from it." Shenmen is the gateway through which heart qi enters and exits; the qi and blood of the heart meridian flow and pour through here, and it is closely related to syndromes such as the heart governing the spirit-mind and palpitations with insomnia. When heart and kidney are disharmonious, heart fire floats upward, and the location of Shenmen is precisely a key strategic point for settling the heart spirit.
In addition to nightmares and startling palpitations, such individuals often also experience soreness and weakness of the lower back and knees, dry mouth and throat, and heat in the five centers. It is worth noting that modern people who sit at desks for long periods, sit too much and move too little, and who stay up late and eat irregularly are extremely prone to developing a constitution of upper heat and lower cold. In this state, always having nightmares during sleep and waking in fright with a pounding heart is often not a problem of a single zang-fu organ, but rather a water-fire system as a whole that needs to be readjusted.
In traditional Chinese medicine, there are many methods to restore communication between the heart and kidney, but the core lies in "guiding fire back to its source" — allowing the floating heart fire to return to its proper place while also warming the lower jiao. Food ingredients such as lotus plumule, lily bulb, and sour jujube seed are somewhat helpful for heart-kidney disharmony, but the specific combination must be tailored to the individual. One must absolutely not arbitrarily pile up so-called "spirit-calming herbs," lest cold and heat become intermixed and instead damage upright qi.
Phlegm-Fire Disturbing the Heart, Frequent Frightful Dreams — The Forgotten Third Force
When many people hear of nightmares, they immediately think of deficiency patterns, but they overlook the possibility of excess patterns. Phlegm-fire disturbing the heart is another important clinical cause of nightmares and startling palpitations. When phlegm-dampness accumulates internally over time, becomes depressed and transforms into fire, and fire by nature flames upward, disturbing the heart spirit above, a person will experience intense scenes in dreams such as running, falling, or being pursued.
The Wenbing Tiaobian points out: "When phlegm-fire disturbs the heart, the spirit-mind is unsettled, and dreams are frightening." Such individuals often tend to be overweight, with a yellow greasy tongue coating, sticky sensation in the mouth, and unsmooth bowel movements. This is closely related to their usual preference for rich, sweet, and greasy foods, fondness for alcohol, and lack of exercise.
In the meridian system, Fenglong is especially closely related to the transformation of phlegm-dampness into fire. Fenglong belongs to the Foot Yangming Stomach Meridian and is the luo-connecting point of the stomach meridian. It is located on the lateral side of the lower leg, 8 cun above the tip of the lateral malleolus, on the outer edge of the tibialis anterior muscle. The Yulong Ge says, "When there is much phlegm, one must reduce Fenglong," and traditional Chinese medicine regards Fenglong as a key point for transforming phlegm. Luo-connecting points can communicate the paired interior-exterior meridians; Fenglong both connects to the stomach fu and links to the spleen zang. The spleen governs the transportation and transformation of water-dampness; when the spleen loses its healthy transportation, dampness gathers and forms phlegm. When turbid phlegm veils the heart orifice, the hun and po are unsettled, and nightmares abound.
Interestingly, nightmares caused by phlegm-fire disturbing the heart differ markedly from those caused by insufficient liver blood and heart-kidney disharmony. The former dreams are often more intense and action-oriented, and the palpitations after waking last for a shorter time; the latter are mostly accompanied by dreams with strong emotional coloring such as fear and abandonment, and the palpitations after waking take a long time to subside. This distinction is precisely where the charm of TCM pattern differentiation lies.
If you always have nightmares during sleep and wake in fright with a pounding heart, and if there is a yellow greasy tongue coating, abnormal taste in the mouth, and heaviness and sluggishness of the body, then one should begin with "clearing and transforming phlegm-fire." Food ingredients such as lotus leaf, winter melon, and white radish help to resolve phlegm-dampness, but for those in whom phlegm and fire have become deeply bound over time, it is essential to seek the help of a licensed TCM practitioner, and one must not take fire-purging drugs on one's own, lest yang qi be damaged.
Gallbladder Qi Deficiency and Timidity, Ceaseless Startling Palpitations — The Overlooked "Organ of the Brave"
In the Huangdi Neijing there is a thought-provoking statement: "The gallbladder is the official of uprightness, and decision-making emerges from it." The gallbladder governs decision-making and is directly related to a person's courage and boldness. When gallbladder qi is sufficient, a person naturally remains unstartled when encountering matters; when gallbladder qi is deficient and timid, even slight fright causes palpitations and unease.
The characteristic nightmares of such individuals often involve a sense of helplessness in which they repeatedly dream of "being chased but unable to run" or "wanting to shout but unable to make a sound." After waking in fright, there are palpitations and heart palpitations, and even during the day they are easily startled, with heart rate accelerating upon hearing sudden sounds. Clinically, gallbladder qi deficiency and timidity are mostly related to insufficient innate endowment or depletion from serious or prolonged illness acquired later in life, and are also commonly seen in people under long-term high pressure.
The "lily disease" mentioned in the Jingui Yaolue, manifesting as "wanting to lie down but unable to lie down, wanting to walk but unable to walk," shares similarities with gallbladder qi deficiency and timidity. To regulate gallbladder qi, one needs to begin with tonifying the heart and spleen and warming and nourishing the gallbladder fu, rather than simply using heavy, settling, spirit-calming substances. Herbs such as lingzhi and yuanzhi are somewhat helpful for gallbladder qi deficiency and timidity, but the specific usage must be determined under the guidance of a TCM practitioner.
Liver Depression Transforming into Fire, Many Dreams of Anger and Conflict — The Distortion of Emotion in Dreams
The last common type is closely related to emotion. The liver governs free flow of qi and prefers free coursing while disliking depression. When emotions are chronically unsmooth and anger is suppressed, liver qi becomes bound, and over time transforms into fire; fire disturbs the heart spirit, and a person easily dreams of quarreling with others, fighting, or being bullied.
The Yizong Jinjian records: "When liver qi is bound and depressed, dreams are often of anger." Such individuals often have a somewhat impatient temperament, or are in a chronically repressed state, easily becoming irritable during the day and having successive nightmares at night. If you always have nightmares during sleep and wake in fright with a pounding heart, and if this is accompanied by distention and fullness in the chest and hypochondrium, bitter taste in the mouth, dry throat, and irregular menstruation, it is most likely related to liver depression transforming into fire.
The key to regulating this type of problem lies in soothing the liver and relieving depression, rather than simply clearing fire. Food ingredients such as chrysanthemum, mint, and rose are somewhat helpful in soothing the liver and rectifying qi, but if liver depression is already deep, food ingredients alone are unlikely to be effective, and one still needs to begin with emotional regulation and lifestyle. In clinical practice, one point that is often overlooked is this: those with liver depression transforming into fire should not consume excessive amounts of pungent and drying-heat foods, otherwise it is like adding oil to fire, which instead makes nightmares worse.
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The next time you wake in fright from a nightmare, take three deep breaths first, and sense whether you have a bitter taste in the mouth, a dry throat, lower back soreness, or chest oppression. These subtle perceptions are precisely the body telling you — it needs a gentle listening.
Related Knowledge Q&A
Insufficient liver blood, the hun without a home — what causes it?
Traditional Chinese medicine holds that insufficient liver blood, the hun without a home — requires a comprehensive assessment starting from holistic pattern differentiation, using the four diagnostic methods of inspection, auscultation and olfaction, inquiry, and palpation in combination, and integrating individual constitutional characteristics for a comprehensive judgment; it cannot be generalized. The specific direction of regulation must be determined after an in-person consultation with a licensed TCM practitioner.
Heart-kidney disharmony, water and fire failing to assist each other — how long does improvement take?
The time required for improvement varies from person to person. Acute problems may improve after several sessions, while constitutional regulation for chronic conditions is recommended to continue for 1–3 months. Traditional Chinese medicine emphasizes gradual progress and one should not rush for quick results; the specific duration must be evaluated by a physician according to the individual's condition.
Phlegm-fire disturbing the heart, frequent frightful dreams — what should be noted in daily life?
In terms of daily care, it is recommended to maintain a regular routine, a balanced diet, moderate exercise, and emotional stability. Specific precautions should be flexibly adjusted according to individual constitution and seasonal changes, and one may consult a licensed TCM practitioner for targeted advice.