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Autonomic Nervous System Clinic

Asleep in Your Arms, Awake the Moment You Put Them Down

Parents joke that their baby has a sensor on its back. But an infant's chest is not a small version of an adult's, and lying on the back genuinely makes the work of breathing harder. Waking up and not settling again appear to have different causes.

Dr. Heo Ji-young 7/22/2026 · 7 min read
Column Autonomic Nervous System Clinic

They Say They Have No Energy — So Why Are They So Oversensitive?

A child is worn out, yet reacts strongly to small things. You would think that when strength drains away they would go quiet, but instead they get louder. This place, where reactions grow larger as reserves shrink, is something Korean medicine has long had a name for, and modern pharmacology has a name for it too.

Dr. Heo Ji-young 7/21/2026 · 8 min read
Column Autonomic Nervous System Clinic

When Period Pain Is Bad Enough to Keep Her Out of School

Period pain comes from a substance made inside the uterus squeezing the uterus hard. The squeezing reduces blood flow, and the place where it is reduced becomes painful. This is also why painkillers work well, and it is the same point that I work on.

Dr. Heo Ji-young 7/21/2026 · 8 min read
Column Autonomic Nervous System Clinic

He Says His Stomach Hurts Only at School

There are children who are fine at home but say their stomach hurts and their breathing feels tight the moment they get to school. The body has read the situation in advance and gone into a state of readiness, and that state does not touch only one place. This is why the stomach and the breath come together.

Dr. Heo Ji-young 7/21/2026 · 10 min read
Column Autonomic Nervous System Clinic

Since Starting Daycare, She Has Had One Cold After Another

A child who has started daycare catches colds often and does not eat well. These two are not separate matters. Losing one's appetite while ill is something the body does, and so the order of recovery is set as well.

Dr. Heo Ji-young 7/21/2026 · 8 min read
Column Autonomic Nervous System Clinic

My Child Gets Nosebleeds Often

A child's nosebleeds usually come from the same spot. It is a place at the front of the nasal septum where blood vessels gather close to the surface. If they come often, you have to look at what state the lining of that spot is in, and the knack for stopping them depends on the spot as well.

Dr. Heo Ji-young 7/21/2026 · 7 min read
Column Autonomic Nervous System Clinic

No Matter How I Wake Him, He Cannot Get Up in the Morning

Past the upper elementary years, a child cannot get up in the morning. It is easy to see this as having become lazy, but at this age the body's clock really does shift later. That it stays that way even when they are given plenty of sleep has been confirmed in the laboratory.

Dr. Heo Ji-young 7/21/2026 · 8 min read
Autonomic Nervous System Clinic

Can Tension Be Seen as a Number? — On Heart Rate Variability

The device on your wrist gives you a number like a "stress index," and more and more people bring me a screenshot of it and ask whether a low reading is all right. It is a good question, so today I want to say what that number actually is.

Dr. Heo Ji-young 7/17/2026 · 9 min read
Autonomic Nervous System Clinic

If Sound and Light Grate on You Especially, and People Wear You Out

Being grated on by sound and light is not a personality problem. It is not that the senses have grown sharper, but that the power to filter has grown weak. A state of alertness does not come down by resolve; it comes down only when the conditions to come down are met.

Dr. Heo Ji-young 7/13/2026 · 9 min read
Autonomic Nervous System Clinic

When Heat Rises to Your Face and Your Chest Feels Tight, but the Tests Are Normal

There are people whose face burns while their hands and feet are cold. It is not that there is too much heat — the heat has lost its way. Put out only the heat above, and below grows colder still. I look at reconnecting the circulation that has been cut off.

Dr. Heo Ji-young 7/13/2026 · 12 min read
Autonomic Nervous System Clinic

When the Gut Tenses, the Mind Tenses Too

Why does stress upset my stomach, and stomach trouble make me anxious? The gut and brain exchange signals in both directions, so what to address first depends on which side changed first; weight loss, bloody stool, or pain that wakes you at night needs testing first.

Dr. Heo Ji-young 7/11/2026 · 6 min read
Autonomic Nervous System Clinic

When Your Eyes and Mouth Are Dry and Gritty but the Tests Are Normal

Why are my eyes gritty and my mouth often dry when tests are normal? Tear and salivary glands are regulated by autonomic nerves, and many medicines can reduce secretion; joint pain or severe persistent dryness needs evaluation for Sjögren’s syndrome and other causes.

Dr. Heo Ji-young 7/11/2026 · 8 min read