My Favourite Acupuncture Point: Pericardium 6 (PC6) – Calming the Heart, Settling the Stomach

If there is one acupuncture point that perfectly demonstrates the connection between the mind, heart, nervous system and digestive system, it would have to be Pericardium 6 (PC6), also known as Neiguan, meaning "Inner Pass."

PC6 is one of my favourite points because of just how versatile it is. It can be used for nausea and digestive complaints, but its influence goes far beyond the stomach. It is also traditionally used to calm the Shen (mind), regulate the Heart, move Qi through the chest and settle an overactive nervous system.

It is one of those points that can be incredibly useful when someone is feeling physically unwell and emotionally overwhelmed.

Where is Pericardium 6?

PC6 is located on the inner aspect of the forearm, approximately two cun above the wrist crease, between the tendons of the palmaris longus and flexor carpi radialis muscles.

An easy way to locate it is to place three finger-widths across the wrist crease and identify the space between these two tendons.

The point is superficial enough to be easily accessible, but its location over important nerves and tendons means accurate anatomical localisation is important.

Why is PC6 so important in Traditional Chinese Medicine?

PC6 is the Luo-Connecting Point of the Pericardium channel and one of the most important points for regulating the Heart and chest.

It is also the Confluent Point of the Yin Wei Mai (Yin Linking Vessel), giving it an important influence over the chest, Heart, emotional wellbeing and internal regulation.

Traditionally, PC6 is used to:

- Calm the Shen.

- Regulate the Heart.

- Move Qi in the chest.

- Harmonise the Stomach.

- Stop nausea and vomiting.

- Regulate the autonomic aspects of emotional distress.

- Relieve pain and tightness in the chest.

- Settle emotional agitation.

The Pericardium channel itself is closely associated with the Heart and emotional experience in TCM, which helps explain why PC6 is so frequently used when physical and emotional symptoms occur together.

Common actions of PC6

In clinical practice, PC6 is commonly used to:

- Settle nausea and vomiting.

- Calm anxiety and emotional tension.

- Regulate the Heart and chest.

- Reduce palpitations.

- Relieve chest tightness.

- Support healthy digestion.

- Calm the nervous system.

- Reduce stress.

- Help regulate sleep.

- Relieve wrist and forearm discomfort.

Conditions that may benefit from PC6

Nausea and vomiting

This is probably the application PC6 is best known for in modern acupuncture research.

PC6 is commonly used for:

- Morning sickness.

- Motion sickness.

- Post-operative nausea.

- Chemotherapy-related nausea.

- General nausea.

- Digestive upset.

Acupressure wristbands that target the PC6 region are also widely available for nausea, reflecting the substantial interest in this point.

One of the interesting aspects of PC6 is that its effect on nausea appears to involve regulation of the autonomic nervous system and brain–gut pathways, providing an excellent example of how traditional acupuncture theory and modern physiology can overlap.

Anxiety and stress

PC6 is one of my favourite points when someone presents with an overactive nervous system.

It is commonly incorporated into treatments for:

- Anxiety.

- Stress.

- Emotional overwhelm.

- Restlessness.

- Panic-like symptoms.

- Difficulty relaxing.

- Sleep disturbance.

In TCM terms, PC6 helps calm the Shen and regulate the Heart. From a modern perspective, stimulation of the area may influence autonomic regulation and the brain networks involved in emotional processing.

Palpitations and chest discomfort

PC6 has a traditional relationship with the Heart and chest and may be used when patients experience:

- Palpitations.

- Chest tightness.

- A sensation of a racing heart associated with stress.

- Emotional tension in the chest.

Of course, unexplained chest pain, significant palpitations or other potentially cardiac symptoms should always be medically assessed rather than assumed to be stress-related.

Digestive problems

Because PC6 has such a strong relationship with the Stomach, it is frequently combined with points such as ST36 when treating digestive complaints.

It may be included in treatment plans for:

- Nausea.

- Reflux.

- Vomiting.

- Bloating.

- Poor digestion.

- Stomach discomfort.

What happens from a Western medical perspective?

The anatomy of PC6 makes this point particularly interesting.

PC6 is located over the forearm muscles and is associated with sensory branches of the median nerve, with the point region lying close to the nerve and its branches. Sensory information from this area enters the spinal cord primarily through the C6–T1 spinal nerve roots.

When acupuncture or acupressure stimulates this region, sensory signals are transmitted through peripheral nerves into the spinal cord and brain.

From there, acupuncture may influence several interconnected systems involved in pain, nausea and autonomic regulation.

Research suggests stimulation of PC6 can influence:

- The autonomic nervous system.

- Brain–gut communication.

- The vagal and parasympathetic regulatory network.

- Central pain-processing pathways.

- Neurotransmitters involved in nausea and vomiting.

- Stress and emotional regulation.

One proposed mechanism for its anti-nausea effect involves modulation of the vagal and brainstem pathways responsible for coordinating nausea and vomiting.

This is particularly interesting because the vagus nerve provides a major communication pathway between the brain and digestive system.

PC6 and the nervous system

One reason I particularly like PC6 clinically is that it can be a useful point when someone appears to be stuck in a state of sympathetic overdrive.

The sympathetic nervous system is responsible for the body's "fight or flight" response. When this system remains highly activated, people may experience:

- Increased heart rate.

- Shallow breathing.

- Muscle tension.

- Digestive disruption.

- Poor sleep.

- Anxiety.

- Difficulty switching off.

Acupuncture at points such as PC6 may help shift autonomic balance towards greater parasympathetic activity—the body's "rest, digest and recover" state.

This doesn't mean that PC6 simply "turns off" the sympathetic nervous system. Rather, acupuncture appears capable of influencing the complex regulatory networks that control autonomic function.

One of my favourite combinations: PC6 + ST36

PC6 and Stomach 36 (ST36) make a particularly useful combination.

ST36 is traditionally associated with strengthening Qi, supporting digestion and improving overall vitality, while PC6 strongly influences the chest, Heart, Shen and Stomach.

Together, they can be useful when someone presents with a combination of:

Stress → nervous system dysregulation → digestive disturbance → nausea or poor appetite.

This is a common pattern in modern life, and it is a good example of why TCM doesn't necessarily separate emotional and physical symptoms into completely different categories.

PC6 and the "Four Gates"

PC6 can also be combined with LI4 and LV3, creating a treatment that addresses both the nervous system and the movement of Qi.

For example, someone experiencing significant stress may present with:

- Tight shoulders.

- Headaches.

- Chest tension.

- Digestive upset.

- Irritability.

- Poor sleep.

Rather than treating each symptom independently, an acupuncturist can select points according to the individual's overall presentation and TCM pattern.

Why I use PC6 so often

PC6 is one of those points that I find particularly useful when a person's physical symptoms and emotional state are closely connected.

A patient might come in complaining primarily of nausea, but underneath that may be significant anxiety.

Another person may present with chest tightness and palpitations that worsen during periods of stress.

Someone else may simply feel completely overwhelmed, unable to relax and experiencing digestive symptoms at the same time.

PC6 gives me a way of approaching these interconnected symptoms from both a TCM and neurophysiological perspective.

Final thoughts

Pericardium 6 is a beautiful example of the relationship between traditional acupuncture theory and modern physiology.

For more than two thousand years, TCM practitioners have used PC6 to regulate the Heart, calm the Shen and harmonise the Stomach. Modern research has increasingly focused on its effects on nausea, pain and autonomic regulation.

For me, PC6 remains one of my favourite points because it sits at the intersection of the Heart, the gut and the nervous system—three systems that we now understand are deeply interconnected.

Sometimes the most effective treatment isn't simply about treating the symptom. It's about helping the nervous system, digestive system and emotional state communicate more effectively with one another.

And that is where PC6 can be such a valuable point.

If you're experiencing persistent nausea, anxiety, palpitations, chest discomfort or digestive symptoms, acupuncture may be a useful complementary treatment—but new or unexplained symptoms should always be medically assessed first.