Qingling

What is HT2?

HT2 (Qingling) is a Heart channel point on the inner upper arm, about three thumb-widths above the inside elbow crease.

Qingling is usually translated as "Green-Blue Spirit". It is the second of the nine points on the Heart channel, which runs from the armpit down the little-finger side of the arm to the inside tip of the little finger. Classical texts list HT2 for pain in the shoulder and upper arm, trouble lifting the arm, chest discomfort, headache and feeling cold.

HT2 sits in every standard point list, so most students learn it. In practice it is used far less than HT7 at the wrist. Several old sources also marked it as a point to handle with care, because of what lies under it.

Two things are worth saying once, clearly, and they apply to the whole page. First, a long tradition behind a point is not evidence that pressing it does anything. Second, a long tradition is not evidence that pressing it is safe. Both have to be judged separately, and for HT2 the safety question matters more than usual.

The reason is anatomy. The inner upper arm carries the brachial artery (the main artery of the arm), the basilic vein, and the ulnar nerve, all fairly close to the surface. That is also where a dialysis fistula is often built, and where swelling collects after lymph node surgery. Gentle fingertip pressure on a healthy arm is low risk. Hard digging is not sensible here.

The honest verdict on effect: there is no controlled human trial of HT2 for anything. Claims you read about it come from tradition and from practitioner experience, not from tested results. Light self-applied pressure is a cheap, low-stakes thing to try for arm tension, but treat it as comfort, not treatment.

Where is HT2 and how do you find it?

HT2 is on the inner upper arm, three cun (about three thumb-widths, roughly 6 cm) above the inside elbow crease, in the groove along the inner edge of the biceps muscle.

• Start at the elbow crease. Bend your elbow slightly and find the crease on the inside of the joint. Run your finger along it towards your body until you reach the bony knob on the inner side of the elbow.
• Mark the baseline. The point at the inner end of that crease, next to the bony knob, is HT3 — not the point you want. HT2 is well above it, up the arm.
• Measure up the arm. Lay three thumb-widths, measured at the thumb knuckle, upward from the elbow crease along the inner arm. That is about 6 cm on most adults. Four fingers held together is a reasonable check of the same distance.
• Find the groove, not the bulge. Tense your biceps. Feel the inner edge of that muscle and the soft channel just behind it, between biceps and the upper arm bone. HT2 sits in that soft channel.
• Confirm by feel. It should feel like soft tissue with a slight hollow, often tender under steady pressure. If you feel a pulse under your fingers, you are on the brachial artery — slide your finger a little towards the back of the arm and ease off.

Measure on your own hand, not someone else's. Cun are proportional, so a tall person's three thumb-widths really is a longer distance than a small person's. Work on the arm that bothers you, or either arm if you are using it to relax.

If you cannot find a clear hollow, do not hunt for it with force. Broad, flat pressure over the right general area of the inner upper arm is all this technique ever delivers anyway.

How do you apply pressure to HT2?

1. Sit and support the arm. Rest your forearm on a table or in your lap, palm facing up, elbow slightly bent. A supported arm lets the muscle soften, which makes the groove easier to feel.
2. Place the thumb. Reach across with the opposite hand and set the pad of your thumb on HT2. Use the flat pad, not the nail edge or a knuckle, and keep the contact broad.
3. Check for a pulse first. Hold still for a few seconds. If you feel a steady throb, you are over the artery — move slightly towards the back of the arm before you press.
4. Press lightly. Sink in slowly to a level you would call 3 or 4 out of 10. You want a dull, warm ache, never a sharp or electric feeling. This spot takes less pressure than a shoulder or a foot.
5. Hold or circle. Hold steady for 30 to 60 seconds, or make small slow circles for about a minute. Breathe normally and let the shoulder drop.
6. Repeat sensibly. One to three rounds per arm, once or twice a day, is plenty. Leave a minute between rounds.
7. Finish with movement. Roll the shoulder and open and close the hand a few times. If the arm felt tight, gentle movement afterwards usually helps more than the pressure did.

Stop immediately if you feel pins and needles, electric shooting into the forearm or little finger, numbness in the hand, a cold or dead feeling in the fingers, or any sharp pain. Those signs mean you are on the ulnar nerve or compressing a vessel. Release the pressure, shake the arm out, and do not go back to that exact spot.

Also stop if the area bruises, stays sore the next day, or if the problem you are treating is getting worse rather than easing. Finger pressure only — nothing on this page involves breaking the skin.

What is HT2 traditionally used for?

• Shoulder and upper arm pain. This is the main traditional use, especially pain that stops someone lifting the arm overhead. It is the most plausible claim, because HT2 sits right in the muscle tissue involved, and steady pressure on a tender upper arm can feel loosening. There is no trial testing HT2 for this.
• Arm heaviness and tingling. Classical texts mention numbness along the inner arm. Modern practitioners sometimes press nearby for a tired, heavy-feeling arm. Be careful: pressure that creates tingling is a signal to stop, not a sign it is working, and new or persistent arm numbness needs a doctor.
• Chest discomfort and "heart pain". As a Heart channel point, HT2 was listed for chest oppression. No human evidence supports using it for any heart complaint. Chest pain, pressure or arm pain with breathlessness is an emergency, not something to press.
• Headache and chills. Older sources list HT2 for headache with a cold, shivery feeling. This claim sits entirely in tradition, and no research has examined it.
• Low mood and agitation. The Heart channel is linked in tradition to the mind and emotions, so HT2 is sometimes included in calming routines. The small, mostly unblinded trials on acupressure and anxiety used other points, usually HT7 at the wrist, and their results are mixed and short-term.
• Yellow eyes and jaundice. This appears in classical lists and is of historical interest only. Yellowing of the skin or eyes is a medical sign that needs investigating the same week.

In short: HT2 has a clear traditional job description and almost no tested one. The reasonable use for a layperson is self-massage of a tense upper arm, treated as comfort rather than as therapy.

Are there tips for using HT2 effectively?

• Less force than you think. The inner upper arm is soft, thinly covered tissue with a nerve and vessels underneath. Gentle pressure here reaches the tissue perfectly well, and heavy pressure mainly buys you a bruise.
• Warm the arm first. A warm shower, or a few minutes of shoulder rolls, softens the biceps and makes the groove easier to feel. Cold, braced muscle hides the landmark.
• Let the elbow bend. A straight, locked arm tightens the biceps and flattens the hollow. A slight bend with the forearm supported opens it up.
• Use the thumb pad, flat. Broad contact spreads the load. Fingernails, knuckles and massage tools concentrate it onto exactly the structures you want to leave alone.
• Time-box it. A minute per round, two or three rounds, then stop. Long grinding sessions on one spot in the upper arm make soreness more likely without adding benefit.
• Pair it with movement, not instead of it. For a stiff shoulder or arm, gentle range-of-motion exercise has real evidence behind it. Use HT2 as a warm-up to movement rather than a substitute.
• Work the sore side, lightly. If one arm is the problem, treat that one. There is no need to press both arms hard to "balance" anything.
• Keep a simple note. Write down what you pressed, for how long, and what changed over the next hour. Two weeks of notes will tell you more about whether it helps you than any article can.
• Judge it on comfort. If the arm feels looser and you enjoy the few minutes, that is a fair reason to continue. If nothing shifts after a couple of weeks, drop it without guilt.

What do people get wrong with HT2?

• Expecting a cure. No acupressure point cures anything, and HT2 has no tested effect at all. Going in expecting a fix leads people to press harder and longer, which is exactly the wrong response on this part of the arm.
• Confusing HT2 with HT3. HT3 (Shaohai) sits at the inner end of the elbow crease. HT2 is three thumb-widths higher up the arm. People often press at the elbow and call it HT2.
• Pressing on the pulse. The brachial artery runs through this region. If you feel a throb under your thumb, shift slightly towards the back of the arm and lighten up rather than leaning in.
• Chasing the tingle. Electric zings into the forearm or little finger mean you are on the ulnar nerve. That is a stop signal, not evidence that the point is "active".
• Using a tool or knuckle. Hard, pointed pressure belongs nowhere on the inner upper arm. Thumb pads only.
• Treating chest pain with it. Because HT2 is a Heart channel point, people assume it is for the heart. Pressing an arm point while chest pain or breathlessness builds wastes the minutes that matter most.
• Working a swollen or altered arm. An arm that is swollen after lymph node surgery, has a dialysis fistula, or is newly red, hot and painful should be left alone and shown to a clinician.
• Pressing straight after a flu shot or blood test. Give a recently needled, bruised or sore arm a few days before applying pressure near the site.
• Dropping real treatment. People sometimes delay physiotherapy or a GP visit for a shoulder that is not improving. HT2 is a few pleasant minutes, not a reason to wait.

What does the research on HT2 actually say?

There is essentially nothing. No controlled human trial has tested acupressure or acupuncture at HT2 (Qingling) as the point under study, for shoulder pain, chest symptoms, headache, mood or anything else. Searching the clinical literature turns up the point in location atlases and in lists of points used within larger prescriptions, not as the thing being measured.

That matters, because when a point appears only inside a multi-point treatment, nobody can say what HT2 itself contributed. The trial result, good or bad, belongs to the whole package and to whatever the patients expected.

The Heart channel is not entirely unstudied. HT7 (Shenmen) at the wrist has been looked at in small trials for insomnia and anxiety, often alongside ear points. Those studies are typically small, hard to blind, and short in follow-up, and the results are mixed. Whatever they suggest applies to HT7, not to HT2 three thumb-widths above the elbow.

It is worth being clear about why blinding is such a problem in this field. A person knows when a thumb is pressing their arm. A relaxing few minutes with attention on your own body produces real, measurable short-term changes in how tense and how sore you feel, whichever spot is pressed. Separating that from a point-specific effect needs careful sham comparisons, and acupressure studies rarely manage it well.

So the honest summary for HT2 is: a recognised classical point, a clear traditional indication for shoulder and upper arm problems, and an evidence grade of insufficient. That does not mean it has been tested and failed. It means it has not been tested, and you should not treat tradition or a confident video as a stand-in for a result.

If someone cites a study "proving" HT2 works, check whether the study actually isolated HT2. Usually it did not.