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Is having a lot of déjà vu a disease? ｜Easy explanation of possible causes and guidelines for seeing a doctor

Healthy Lifestyle

This article is a translation of the following Japanese article:

Original: デジャブが多いのは病気？｜考えられる原因と受診の目安をやさしく解説

“I feel like I’ve experienced this scene before.”
“It’s supposed to be my first time, but for some reason I feel like I know it.”

When you experience this déjà vu,

  • “Is it a brain disease?”
  • “Dementia or epilepsy?”
  • “Is it because of stress?”

There are many people who feel anxious.

In conclusion,
👉 Most déjà vu is not a disease.
However, some cases require caution depending on the frequency and associated symptoms.

Author
“It’s okay not to immediately conclude that déjà vu is abnormal.”

What is deja vu?

What is déjà vu?

Phenomenon where you feel like you have experienced the exact same thing before
Even though you are actually experiencing the situation for the first time

It means

.

It is considered to be a very common phenomenon that many people
experience at least once in their lifetime.

Why does déjà vu occur? (Causes other than illnesses)

✔ Brain’s “memory processing gap”

Currently, the most likely one is

  • The brain has a “first experience”
  • For a moment, it is mistakenly recognized as a “past memory”

This is the theory.

In other words,
a lag in the timing of information processing in the brain creates a
feeling of knowing.

This happens even in healthy brains.

✔ Tired・Lack of sleep・ストレス

Deja vu especially.

  • Lack of sleep
  • Strong stress
  • Decreased concentration
  • When you are tired
It is known that

is more likely to occur.

This is because
the brain’s ability to pay attention and organize memory temporarily declines.

Author
“Actually, many people experience more déjà vu during busy periods.”

✔ It is more likely to occur in younger people

Deja vu is

  • 10th generation to 30th generation
  • Intellectually active person

tends to be the most common.

It is also said to be a phenomenon that
in fact decreases with age.

Relationship between déjà vu and illness

This is the core of why people search for “déjà vu illness”.

✔ Epilepsy (temporal lobe epilepsy)

Although rare, a strong sense of déjà vu may occur as a symptom of
temporal lobe epilepsy.

Characteristics in this case:

  • Sudden, intense feeling of déjà vu
  • Disappears within seconds to minutes
  • At the same time
    • 動早
    • Dizziness
    • Derealization
    • May be accompanied by severe anxiety

✔ Migraine (precursor)

As a migraine aura (aura),

  • Feeling of deja vu
  • Uncomfortable sense of reality

may occur to some people.

In this case,

  • Headache afterwards
  • Similar pattern every time
It has the feature

.

✔ Mental ストレス・Anxiety Obstacles

More than a disease

  • Severe anxiety
  • Panic
  • Dissociative symptoms
As part of


you may experience déjà vu or a “feeling of unreality”.

Author
“In this case, the underlying cause is often “mental fatigue” rather than “brain malfunction”.”

Features of déjà vu you should be aware of

In the following cases, we recommend that you consult a medical institution.

  • Déjà vu occurs frequently (daily/many times a week)
  • Involved with strong anxiety and fear
  • Feeling vague
  • I feel like my memories are flying by
  • It happens every time in the same situation
  • With headache and convulsions

These are subject to consultation by
Neurology, Neurosurgery, and Psychosomatic Medicine.

Don’t worry too much about this déjà vu

  • Sometimes it happens just as I remember it
  • Only when you are tired
  • It ends with you thinking “Huh?”
  • No interference with daily life

In such cases,
the possibility of illness is considered to be low.

Author
“Most people have experienced just feeling weird.”

Self-care when feeling deja vu

✔ Adjust your sleep

  • Lack of sleep is the enemy of deja vu
  • Prioritize sleep time and quality

✔ Don’t let stress build up

  • When tension continues, the brain tends to malfunction
  • Take a short break

✔ Keep records

  • Time it happened
  • Status
  • Physical condition
If you write down

,
this will serve as a basis for decision-making at the time of your visit.

Summary｜Déjà vu is a “sign from the brain”

✨ Most cases of déjà vu are not caused by a disease
✨ It can easily occur due to fatigue, stress, or lack of sleep
✨ However, if you experience frequent or severe symptoms, please consult a doctor
✨ If you feel anxious, you may see a doctor

Author
“Déjà vu is not “evidence of something abnormal,” but
may be a message from the brain saying “I’m a little tired right now.”

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