Acupuncture, HRV & the Nervous System

Where traditional medicine and modern physiology begin to overlap

This is one of the areas I am most interested in as both an acupuncturist and a student of mind-body medicine.

Traditional East Asian medicine developed an entire framework around adaptation, balance, environment, constitution and the relationships between different systems in the body.

Modern neuroscience uses a very different language.

We talk about autonomic regulation, stress physiology, interoception, heart-rate variability and recovery.

I don't think we need to pretend these systems are saying exactly the same thing to find the overlap interesting.

What is HRV?

Heart-rate variability, or HRV, refers to variation in the amount of time between individual heartbeats.

It can provide information about autonomic nervous-system activity and how flexibly the cardiovascular system responds to changing demands.

But HRV is not a grade for your nervous system.

It changes with sleep, breathing, exercise, illness, medications, age and many other factors.

I am much more interested in patterns over time than whether one number looks good or bad.

When I use HRV or biofeedback, the question is not:

“How do we get the highest number?”

It is:

“What changes when your body gets a chance to recover?”

Where acupuncture fits

Researchers have also studied acupuncture using HRV and other measures of autonomic function.

Some systematic reviews have found changes consistent with increased parasympathetic activity following acupuncture, although study quality and methodology vary and more research is needed.

So I don't describe acupuncture as a button that simply switches the nervous system into “rest and digest.”

The body is more complicated than that.

Instead, I think of treatment as one possible opportunity for the nervous system to practice shifting states.

You arrive after a day of movement, noise, decisions, screens and demands.

Then something changes.

You lie down.

There is less input.

Your breathing may slow.

Your muscles begin to soften.

For a period of time, nothing is asking you to respond.

Sometimes acupuncture is part of helping create that shift.

Sometimes we add breathwork, qigong, movement, herbs, biofeedback or changes in sleep and daily routine.

The point isn't to force the body to relax.

It is to give it more opportunities to remember that recovery is also something it knows how to do.

One final thought

Sometimes people assume nervous-system work is about becoming better at tolerating more.

More work.

More responsibilities.

More noise.

More pressure.

I don't think that is always the goal.

Sometimes becoming more regulated makes you more aware of what is draining you.

You notice when you are holding your breath.

You recognize which environments leave you depleted.

You discover that your headache arrives every Sunday night.

You remember what proper sleep feels like.

You realize that what you thought was normal was actually your body adapting extremely well to a life with very little recovery built into it.

And then you have information you can actually use.

Sources

Hamvas S, et al. Acupuncture increases parasympathetic tone, modulating HRV: Systematic review and meta-analysis. Complementary Therapies in Medicine. 2023.

Laborde S, et al. Effects of voluntary slow breathing on heart rate and heart rate variability: A systematic review and meta-analysis. Neuroscience & Biobehavioral Reviews. 2022.