Doctor Ni Haixia’s First Lesson: How to Learn Chinese Medicine — From Gui Zhi Tang (Cinnamon Twig Decoction) to Yin-Yang Diagnosis, Using Classical Formulas to the Fullest
Patient search terms: how to learn Chinese medicine / the composition of Gui Zhi Tang / why Gui Zhi Tang includes ginger and red dates / what to do about leg cramps / Chinese medicine for varicose veins / how to treat palpitations and a racing heart / cold hands with warm feet — what constitution is that / how to tell true cold with false heat / what are classical formulas (jing fang)
Corresponding medical names: Gui Zhi Tang (Cinnamon Twig Decoction) · Shao Yao Gan Cao Tang (Peony and Licorice Decoction) · palpitations (xin ji) · varicose veins · yin-yang differentiation · true cold with false heat · the application of classical formulas
Opening: before anything else, a student of Chinese medicine needs a parent’s heart and a devoted spouse’s heart
At the very beginning of the lecture, Doctor Ni Haixia speaks about the attitude with which one should approach Chinese medicine. He says that what he felt from his own teacher was a kind of “parent’s heart and devoted spouse’s heart” — an earnest fear that later students might fail to understand China’s culture and China’s medicine, and a sincere hope that his students would surpass him.
💬 Note from Doctor Ni Haixia: I often use observation of the patient as part of my diagnosis. Seeing that you are all so young and still interested in learning Chinese medicine — you truly have not abandoned traditional medicine, and that is precious and rare. But first, everyone must do one thing: let go — put down every preconception in your mind, everything you brought with you, and only then listen. That is how we can truly benefit, and it is how we honor our teacher.
He also speaks about his way of teaching: students are welcome to ask questions at any time, and he will extend the question into the Shang Han Lun (Treatise on Cold Damage) and the Jin Gui Yao Lue (Essentials from the Golden Cabinet), so that students genuinely understand the reasoning behind the classical formulas.
The original Gui Zhi Tang: a complete design of three herbs plus two
Doctor Ni Haixia uses Gui Zhi Tang (Cinnamon Twig Decoction) as his very first lesson, explaining in full “why the formula is built the way it is.”
💬 Note from Doctor Ni Haixia: The original Gui Zhi Tang is built on three core herbs — gui zhi (cinnamon twig), bai shao (white peony root), and zhi gan cao (honey-fried licorice) — and behind them, sheng jiang (fresh ginger) and hong zao (red dates). Gui zhi is acrid and sweet, dispersing, and yang in nature: it pushes the heart’s blood out to the very ends of the limbs. Bai shao is sour and bitter, draining, and yin in nature: it pulls the blood back from the veins to the heart. The arteries and the veins are equally long, so the two herbs are used in equal doses.
Why does sweating call for ginger and red dates? Doctor Ni Haixia’s explanation is wonderfully precise — the moment you induce sweating, once gui zhi and bai shao go in, the blood circulation speeds up and the body begins to perspire; and the moment you perspire, the fluids (jin ye) of the stomach and intestines are carried away. So the last two herbs — ginger, red dates, and the rest — act precisely at the moment the sweat is lost, replenishing the fluids of the stomach and intestines and putting them back. That is the definition of the original Gui Zhi Tang.
Turn the reasoning around: if you prescribe the formula but forget the ginger and dates, the patient will have dry stools and constipation — because the gastrointestinal fluids have been dispersed away. The root of constipation is sometimes not heat at all, but insufficient fluids.
Shao Yao Gan Cao Tang: leg cramps and varicose veins
As a patient is about to leave, he remembers to mention “I often get leg cramps when I sleep at night” — and Doctor Ni Haixia brings out Shao Yao Gan Cao Tang (Peony and Licorice Decoction).
💬 Note from Doctor Ni Haixia: Shao Yao Gan Cao Tang treats leg cramps with immediate effect. I once saw a lady with twenty years of varicose veins — the vessels stood out over her entire leg like earthworms, as thick as a finger. We used Shao Yao Gan Cao Tang with pao fu zi (prepared aconite) and niu xi (achyranthes root), to pull the blood back, unblock the channels and invigorate the blood, and gradually the veins flattened out again.
The truth about palpitations: the heart pounds because its force is not enough
Doctor Ni Haixia explains the mechanism of palpitations (xin ji — a racing, pounding heart) with great clarity:
💬 Note from Doctor Ni Haixia: The real cause of palpitations is that the heart itself wants to supply blood to the ends of the limbs, but its force is not strong enough — and that is why it pounds. So use equal measures of zhi gan cao (honey-fried licorice) with equal measures of gui zhi (cinnamon twig) — gui zhi increases the heart’s ejection force and disperses the heart’s blood out to the ends of the limbs, and the palpitation naturally stops.
If the palpitations are severe, increase the gui zhi and zhi gan cao in the prescription and the pounding disappears. Cold hands with warm feet indicate deficient heart yang in the upper burner — gui zhi governs the upper burner and the arteries — so you increase the dose of gui zhi and reduce the dose of bai shao, letting the yang qi rise and warm.
True cold with false heat: the surface is hot, but the interior is cold
This is a diagnostic principle Doctor Ni Haixia emphasizes again and again:
💬 Note from Doctor Ni Haixia: When you give a very hot medicine, the patient’s surface may turn hot — because the interior is cold, so yang cannot enter and therefore floats outward. That kind of heat feels warm to the touch, but it is actually yang floating to the exterior — local heat, not a true high fever. In a genuine cold pattern, you must use hot medicine to drive the yang qi back in.
This one principle runs through the application of every classical formula: do not assume that heat is a heat pattern. You must distinguish “true heat” from “true cold with false heat.”
The art of the guiding herb: clear lung qi descending, carrying dampness downward
On treating wind-dampness (feng shi) in the feet, Doctor Ni Haixia displays the fine craftsmanship of the classical formulas:
💬 Note from Doctor Ni Haixia: When wind-dampness sits in the feet, add one herb — zhi mu (anemarrhena root). Zhi mu presses the clear qi of the lung downward; the lung governs descending, governs moving downward, and in the course of descending it carries the dampness within the lung out with it. Clear qi descends without carrying any turbid qi down with it — that is how the dampness is able to leave through the feet.
A sharp critique of Western medicine: a rat poison sold for a few US dollars a pill
Doctor Ni Haixia offers a pointed example comparing Western and Chinese medicines:
💬 Note from Doctor Ni Haixia: Warfarin is rat poison! A rat eats it, its blood can no longer clot, its vessels rupture, and it dies. The pharmaceutical company makes it into small pills in tiny doses and sells each pill for several US dollars — while the same substance sold to pest-control companies is priced by the pound, a few dollars a pound. The patient is eating rat poison — and it damages the liver.
His point: when using classical formulas you must understand the mechanism, value cost-effectiveness, and never harm the body — rather than being led around by commercial packaging.
Summing up the method: return to the origin of the classical formulas
💬 Note from Doctor Ni Haixia: There is no shortcut in learning Chinese medicine. It is simply a matter of thinking through the mechanism of every single herb — which channel it enters, whether it ascends or descends, whether it disperses or astringes, and how the dose changes with the syndrome. Never use a formula as a dead template. Return to the origin of the Shang Han Lun and the Jin Gui Yao Lue, and you will be able to carry the classical formulas to their utmost.
Compiled from Doctor Ni Haixia’s first lecture on the fundamentals of classical formulas (jing fang), presented by Doctor Luo Dalun.