Lung Meridian (手太阴肺经): Path, Points & Functions

1. Overview of the Lung Meridian

The Lung Meridian (手太阴肺经, Shǒu Tàiyīn Fèijīng) belongs to the Metal element and is paired with the Large Intestine Meridian. In TCM, the Lung is known as the "Prime Minister" or "Canopy" — it sits at the top of the body's organ hierarchy and is the first line of defense against external pathogens. The Lung governs Qi, respiration, and the distribution of Wei (defensive) Qi to the skin and muscles. The Lung is most active during 3 AM – 5 AM, the pre-dawn window when the body's energy focuses on respiratory clearing and the circulation of defensive energy to prepare for the day ahead.

Because the Lung governs Qi and controls the body's surface (skin and Wei Qi), it is deeply connected to immunity and the body's ability to ward off colds, flu, and other external pathogens. In TCM, the emotion associated with the Lung is grief and sadness — the process of letting go. Just as the Lungs take in the new and release the old with each breath, the Lung's emotional function is about releasing what no longer serves us. When Lung Qi is strong, breathing is deep and easy, the immune system is robust, the skin is healthy, and emotions flow freely. When Lung Qi is deficient — often from chronic grief, repeated respiratory infections, or poor lifestyle — cough, asthma, fatigue, frequent colds, and a lingering sadness can develop. Understanding the Lung Meridian's pathway and key points empowers you to strengthen your respiratory health, boost your immunity, and process grief through daily self-care.

2. Meridian Pathway

The Lung Meridian follows a relatively short but clinically significant pathway that connects the chest to the inner arm and the thumb. As the first meridian in the TCM body clock, it sets the tone for the entire day's energy circulation.

The Lung Meridian originates in the Middle Burner (the region of the Stomach and Spleen), reflecting the Lung's dependence on the Spleen's production of Gu Qi (food essence) for its own energy. From there, it descends internally to connect with the Large Intestine — its paired Yang organ — then ascends through the diaphragm and enters the Lung. The main external pathway surfaces at the Zhongfu point (LU1) on the upper chest, just below the collarbone. From there, it travels down the anterior (front) aspect of the upper arm, passes through the inner elbow at Chize (LU5), and continues down the radial (thumb) side of the forearm. It crosses the wrist at Taiyuan (LU9) and Lieque (LU7), runs along the radial side of the palm and thumb, and terminates at the Shaoshang point (LU11) on the radial side of the thumbnail of the thumb.

This pathway explains why Lung imbalances often produce symptoms along the inner arm — pain, numbness, or tingling on the radial side of the arm and hand can indicate stagnation in the Lung channel. The meridian's connection to the nose explains why nasal congestion, runny nose, and loss of smell are classic Lung symptoms. The starting point at LU1 Zhongfu on the chest also explains why chest tightness and respiratory symptoms are directly addressed through this channel.

3. Key Acupoints on the Lung Meridian

The Lung Meridian contains 11 acupoints on each side of the body (LU1 through LU11). Though it is one of the shorter meridians, several of its points are among the most clinically important in all of TCM. The following are the most widely used in both acupuncture and acupressure practice.

LU7 Lieque (列缺) — The Master Point

LU7 Lieque is the most important point on the Lung Meridian and one of the most versatile points in all of TCM. Its name means "Broken Sequence" or "Deficient Cleft," referring to the small groove in the radial bone where it is located. Found above the wrist on the radial (thumb) side, about 1.5 cun (two finger-widths) above the wrist crease, Lieque is the master point of the Conception Vessel (Ren Mai) — the extraordinary vessel that runs along the front midline of the body. This connection gives LU7 influence over the entire Yin aspect of the body. It is the go-to point for headaches (especially frontal and occipital), neck pain, coughs, asthma, sore throat, and immune support. It is also one of the most effective points for releasing the exterior at the onset of a cold.

To use Lieque at home, cross your hands with the index finger of one hand resting on the wrist crease of the other. The point is located in the depression just below the tip of your index finger, on the thumb side of the forearm. Apply firm pressure for 1–3 minutes on each arm. This point is especially effective when used at the first sign of a cold or when experiencing a tension headache. For a detailed guide on using this and other respiratory points, see our acupressure guides.

4. Related Organ & Functions

In TCM, the Lung is far more than a respiratory organ — it is the body's energetic canopy, governing Qi, immunity, the skin, and the processing of grief. Understanding these functions helps explain why the Lung Meridian is so central to overall health.

The Lung governs Qi and respiration. The Lung is the primary organ responsible for the intake of air (Da Qi) and the extraction of Qi from the breath. This respiratory Qi combines with the food essence (Gu Qi) from the Spleen to form Zong Qi (Gathering Qi), which is stored in the chest and drives respiration and circulation. When Lung Qi is strong, breathing is deep and easy, the voice is clear and resonant, and energy levels are steady. When Lung Qi is deficient, breathing becomes shallow, the voice is weak, and fatigue sets in.

The Lung rules the skin and hair and governs Wei (defensive) Qi. This is the Lung's most important immune function. Wei Qi is the defensive energy that circulates just beneath the skin and in the muscle layer, protecting the body from external pathogens like wind, cold, and damp. The Lung disperses Wei Qi to the body's surface, creating a protective shield. When Lung Qi is strong, the skin is healthy, sweating is normal, and you rarely catch colds. When Lung Qi is weak, the defensive shield is compromised — you become susceptible to colds and flu, the skin may be dry or prone to conditions like eczema, and you may sweat spontaneously without exertion.

The Lung opens into the nose and houses the Po (corporeal soul). The nose is considered the "gateway to the Lungs" — nasal congestion, runny nose, and loss of smell all reflect Lung disharmony. The Lung also houses the Po (魄), the corporeal soul, which is the aspect of consciousness tied to the physical body, instinctive reactions, and the capacity to let go. In TCM, the Lung's emotional function is about release and letting go — just as each exhalation releases what is no longer needed, the Lung's healthy function allows us to process grief and release attachments. When the Lung is deficient, grief becomes stuck, leading to sadness, difficulty moving on, and a sense of heaviness in the chest.

Lung in Balance vs. Imbalance

5. Symptoms of Lung Meridian Imbalance

When the Lung Meridian is out of balance, the symptoms tend to cluster around the respiratory system, the skin, immunity, and emotions. The most common signs include:

• Respiratory: Cough (dry or with phlegm), asthma, wheezing, shortness of breath, shallow breathing
• Chest: Chest tightness, chest pain, feeling of fullness or constriction in the upper chest
• Throat and nose: Sore throat, nasal congestion, runny nose, sneezing, loss of smell, postnasal drip
• Immunity: Frequent colds and flu, slow recovery from respiratory infections, low resistance to wind and cold
• Skin: Dry skin, eczema, psoriasis, skin rashes, excessive or deficient sweating
• Voice: Weak or hoarse voice, difficulty speaking loudly, vocal fatigue
• Emotional: Sadness, grief, difficulty letting go, feeling of heaviness in the chest, suppressed crying
• Energy: Fatigue, especially upon waking; low stamina; feeling depleted
• Sleep: Waking between 3 AM – 5 AM (the Lung's peak time) and being unable to fall back asleep

If you regularly experience several of these symptoms, your Lung Meridian may benefit from attention. The Lung responds beautifully to deep breathing exercises, protective clothing against cold and wind, nourishing foods, and acupressure on LU7 Lieque and LU9 Taiyuan.

6. When to Practice: The Lung Body Clock

In the TCM body clock, the Lung Meridian's peak energy time is 3 AM – 5 AM. This pre-dawn window is when Qi flows most strongly through the Lung channel, and the body focuses on respiratory clearing and the distribution of Wei (defensive) Qi. This is why many people naturally wake to cough or clear their throat during this time — the Lung is actively processing and clearing. It is also why deep, restorative sleep before 3 AM is so important for Lung health.

For a full understanding of the TCM organ clock and how each meridian's peak time affects your health, see our comprehensive TCM Body Clock Guide.

7. Foods That Support the Lung

Because the Lung belongs to the Metal element, it resonates with the color white and benefits from foods that are moistening, nourishing, and easy to breathe around. The general principle is to favor foods that moisten the Lungs (the Lungs are said to "dislike dryness"), support Wei Qi, and clear phlegm.

For personalized food recommendations based on your constitution, visit our food therapy guides and explore recipes that nourish Lung Yin and support respiratory health. Avoid excessive cold and raw foods (which weaken the Spleen and indirectly the Lungs), excessively spicy foods (which can dry the Lungs), and dairy in excess (which can create phlegm). Also avoid smoking and excessive alcohol, which directly damage Lung tissue and Qi.

8. Exercise Recommendations & Meridian Stretches

Deep breathing exercises and gentle movement that opens the chest are among the most effective ways to regulate the Lung Meridian. Because the Lung governs respiration and Wei Qi, practices that combine conscious breathing, chest opening, and gentle arm movement are ideal. Morning practice is especially beneficial, as it engages the Lung Meridian and distributes defensive energy for the day.

• Six Healing Sounds Qigong — The Lung sound (Si — 咝) releases grief, sadness, and stagnant energy from the Lungs. Practicing this sound in the morning, especially outdoors in fresh air, is one of the most powerful practices for Lung health.
• Tai Chi for Stress & Anxiety — Tai Chi's slow, flowing movements open the chest, regulate the breath, and strengthen Lung Qi. The deep, coordinated breathing that Tai Chi cultivates directly nourishes the Lung Meridian.

Lung Meridian Stretches

The following stretches target the Lung Meridian's pathway along the inner arm and open the chest, promoting the free flow of Lung Qi and strengthening respiratory capacity:

1. Chest and Arm Opener: Stand tall and interlace your fingers behind your back. Gently straighten your arms and lift them upward, opening the chest and stretching the front of the shoulders. At the same time, feel the stretch along the inner arms where the Lung Meridian runs from LU1 Zhongfu through the inner arm. Hold for 20–30 seconds, breathing deeply into the chest.
2. Inner Arm Stretch for LU7: Extend one arm forward with the palm facing up. Gently pull back on the thumb and wrist with the opposite hand, stretching the radial side of the forearm where LU7 Lieque and LU9 Taiyuan are located. Hold for 20–30 seconds on each side. Then press LU7 Lieque with your thumb for 1 minute on each arm.
3. Deep Breathing with Arm Raise: Stand with feet shoulder-width apart. As you inhale deeply through the nose, slowly raise both arms out to the sides and overhead, expanding the chest and rib cage. As you exhale through the mouth, slowly lower the arms. Repeat 5–10 times. This combination of deep breathing and arm movement directly stimulates the Lung Meridian's pathway while strengthening respiratory capacity and distributing Wei Qi.

Practice these stretches daily, ideally in the morning upon waking to engage the Lung Meridian and prepare your defensive Qi for the day. Even five minutes of conscious breathing and gentle stretching can strengthen your Lungs, boost your immunity, and help you process grief.

9. Cross-Links & Related Resources

The Lung Meridian does not exist in isolation — it is part of an interconnected web of organ systems, therapies, and self-care practices. Here are the key connections to explore:

• Paired meridian: The Large Intestine Meridian is the Lung's Yang paired meridian. Together they form the Metal element pair — the Lung governs respiration and letting go on the breath level, while the Large Intestine governs elimination and letting go on the physical level. Both are about release.
• Meridian Atlas: Explore all twelve meridians in our interactive Meridian Atlas to see how the Lung fits into the complete body clock as the first meridian.
• Related acupressure: For immune support and respiratory health, see our acupressure guides for techniques using LU7 Lieque and other Lung points. For cold and flu prevention, explore our immunity guides.
• Symptom checker: Experiencing cough, chest tightness, or frequent colds? Use our symptom checker to explore which meridians may be involved.
• Constitution: Take our constitution quiz to learn your type — Qi deficiency is the pattern most associated with Lung weakness and low immunity.

10. Frequently Asked Questions

What time is the Lung Meridian most active?

The Lung Meridian is most active between 3 AM and 5 AM. This pre-dawn window is when Qi flows most strongly through the Lung channel, making it the body's natural time for deep breathing, respiratory clearing, and the distribution of defensive (Wei) Qi. Waking during this time can signal Lung imbalance or unresolved grief. Ideally, you should be asleep during this window.

What is the most important acupoint on the Lung Meridian?

LU7 Lieque (列缺), located above the wrist on the radial (thumb) side, is the most important point. It is the master point of the Conception Vessel (Ren Mai) and is used for headaches, neck pain, coughs, asthma, and immune support. LU9 Taiyuan (太渊) is also crucial as the source point and the influential point for all blood vessels.

What emotion is associated with the Lungs in TCM?

Grief and sadness are the emotions associated with the Lungs. In TCM, prolonged or unresolved grief can deplete Lung Qi, leading to respiratory weakness, fatigue, and lowered immunity. Conversely, weak Lung Qi can make a person more susceptible to sadness and difficulty letting go. The Lung's healthy function is about release — breathing out what is no longer needed.

How can I strengthen my Lung Qi for better immunity?

Several practices strengthen Lung Qi and boost immunity: (1) Daily deep breathing exercises or Qigong, especially in the morning; (2) Acupressure on LU7 Lieque and LU9 Taiyuan; (3) Eating moistening, white-colored foods like pears, lily bulb, and white fungus; (4) Protecting your neck and chest from cold wind; (5) Getting adequate sleep before 3 AM; and (6) Processing grief through journaling, therapy, or the Six Healing Sounds practice.