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Attention... Insomnia is not an illness, it is the brain's red alarm

Dr. Hüseyin Nazlıkul
Dr. Hüseyin Nazlıkul 22.02.2026 4 min read

Today, millions of people say the sentence "I can't sleep."
But very few people ask: "Why won't my brain let me sleep?"

Because sleep is not merely a matter of fatigue. Sleep is the organism saying "I am safe," and the modern human brain has, for a long time, been unable to say this sentence.

We call insomnia an "illness." Yet biologically, insomnia is, most of the time, not an illness but a state of alarm.

The limbic system, located in the deep centers of the brain — particularly the amygdala and hypothalamus — is the organism's security software. This system has evolved over millions of years to answer a single question: "Is there danger?"

If the answer is "yes," sleep shuts down. Because in nature, sleeping while danger is present is suicide from the standpoint of survival.

Today we are not fleeing from wild animals. But the brain does not know this. The limbic system does not operate on logic, but on the load of stimuli.

Noise…
Screens…
Constant notifications…
Economic uncertainty…
Social tension…
Time pressure…
Emotional suppression…
Unresolved fears…
An unending mental race…

All of these mean one single thing to the limbic system: "Danger."

And while the perception of danger is active, the brain does not permit sleep.

What happens at night for many people today is this:
The bed is quiet, the room is dark, the body is tired…
But the brain has not left the battlefield.

Because the limbic system has not shut down. Insomnia is, most of the time, not a "sleep disorder" but a threat-regulation disorder.

The amygdala is overstimulated.
The hypothalamus is locked onto the stress axis.
The autonomic nervous system is under sympathetic dominance.
Cortisol does not drop.
Melatonin does not rise.
The vagus nerve cannot engage.

In other words, the organism is biologically still "in daytime," and we call this "night." Yet the brain is still fleeing. This is why sleeping pills do not work for many people, or work only briefly. Because the problem is not in the bed. The problem is in the nervous system.

A sleeping pill silences the brain, but it does not convince the limbic system. Yet sleep is not a shutdown but a state of surrender, and the organism only surrenders if it feels safe.

From the perspective of Regulation Medicine, insomnia is not a target in itself; it is a sign that the organism's overall regulatory capacity has been disrupted.

The gut-brain axis is disrupted.
Microcirculation is weakened.
Cellular membrane potentials are not stable.
Mitochondria are in stress mode.
The autonomic nervous system has lost its rhythm.

In this state, the organism cannot shut down for the night. Because night is not simply the light going out. Night is the system transitioning into regulation.

Today, the greatest biological problem of modern humans is this: we cannot finish the day.

The body cannot shut down the day.
The mind cannot shut down the day.
Emotions cannot shut down the day.

And a day that cannot be shut down swallows the night.

This is why many people who cannot sleep at night also cannot wake up in the morning. Because the organism has never truly shut down. The limbic system is still on alert.

Modern lifestyle constantly stimulates the limbic system but produces no culture whatsoever to calm it.

In the past there were rituals.
Evenings slowed down.
There was fire.
There was silence.
There was physical fatigue.
There was community.

Today, the evening is noisier than the day, and the limbic system does not sleep amid noise. For this reason, insomnia is not only an individual but also a social regulation crisis. Because the perception of threat is no longer individual — it has settled onto a collective foundation. People today are exhausted not only by their own lives but by the world, and the limbic system is programmed to scan the world.

For many people today, insomnia is, in fact, the body's way of saying: "There is no reason for me to relax." For this reason, real sleep treatment does not begin with administering melatonin, but with re-teaching the organism to trust.

The nervous system.

The cellular level.

The breath.

The intestinal system.

The resolution of emotional burdens.

Microcirculation.

The balance of the autonomic nervous system.

And most importantly: the relationship a person has built with life.

Because the limbic system pays attention not to what we say, but to how we live, and how we live tells our brain, today, one single thing: "The danger is not over."

Insomnia is not an illness. Insomnia is a symptom. It is the brain's red alarm, and no alarm heals by being silenced. Without understanding the cause of the alarm, night does not come.

To learn more in depth, you can get my book "I Can't Sleep."

You can find more about neural therapy and Hüseyin Nazlıkul's other treatment methods here.