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블로그 2026년 3월 19일

If You Want to Fall Asleep Without Sleeping Pills — The Autonomic Nervous System and Sleep

Dr. Dr. Heo Ji-young, Director of Kyunghee Meerae Korean Medicine Clinic, Gwangjin
의료 감수 Dr. Heo Ji-young Representative Director · KMD

If it bothers you that you have to depend on a sleeping pill every night to fall asleep, it may be worth taking a fresh look at the "reason" why sleep does not come.

Sleeping pills help you fall asleep, but they do not change the underlying cause of why sleep will not come. I see most chronic insomnia as a state in which the autonomic nervous system stays switched to daytime mode even at night. In this article, I want to talk about the relationship between sleep and the autonomic nervous system, and about a direction that leans less on medication.

Sleep is a process of "the switch turning off"

On a healthy night, the sympathetic nervous system, which is in charge of activity, settles down, and the parasympathetic nervous system, which is in charge of rest, rises, so that the body naturally shifts into sleep mode. This transition needs to happen well for you to fall into deep sleep.

But when the tension, stress, and irregular rhythms of the daytime carry on, the sympathetic nervous system does not turn off easily even when night comes. The body is tired but the mind is aroused — a "tired but can't sleep" state. Difficulty falling asleep, waking often, or not feeling refreshed even after sleeping all come from this.

That is why I do not look at sleep in isolation

Insomnia rarely comes alone. When the autonomic nervous system tilts toward tension, it is common for not only sleep but also palpitations, indigestion, and cold hands and feet to appear together. So I do not look only at sleep; I look at the whole picture of which way, and how far, that person's autonomic nervous system is leaning. When the root is the same, helping with sleep becomes, at once, caring for the other symptoms too.

Toward leaning less on medication

First, let me be clear. I do not recommend suddenly stopping a sleeping pill you are currently taking. Adjust it in consultation with the doctor who prescribed it, and herbal treatment works on top of that, in the direction of restoring the very ability for the switch to turn off at night.

  • Acupuncture takes an approach that lowers an over-activated sympathetic nervous system.
  • Herbal medicine is composed to replenish the depleted capacity for regulation and to support the night's rhythm.
  • In daily life, we decide together, starting with keeping a consistent bedtime and reducing light and caffeine before sleep.

The goal is not to get rid of sleeping pills right away, but to gradually recover the body's own power to fall asleep. To the extent that this power is restored, the degree to which you lean on medication can naturally decrease as well.

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Dr. Dr. Heo Ji-young, Director of Kyunghee Meerae Korean Medicine Clinic, Gwangjin

Dr. Heo Ji-young Representative Director · KMD

A graduate of the College of Korean Medicine at Kyung Hee University, with master's and doctoral degrees in pathology — the mechanisms of disease — from its graduate school. Later served as a research professor in the university's Herbology department, studying medicinal substances. Studying both disease and medicine from both sides is the foundation of this practice: explaining "why a given medicine works for a given illness" in the language of both pathology and pharmacology. Explains autonomic, chronic, and intractable conditions — and structural problems of the body — in the language of modern science, and proposes treatment matched to the cause. Has taught prescribing and clinical practice to Korean medicine doctors for over ten years, and is a co-author of "Korean Medicine, Explained by Korean Medicine Doctors," selected for the 2018 Sejong Books list (general category).

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