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Heart Attack Warning Signs: Causes, Treatment, and Prevention

Sinchon Dain Dental Hospital · 신촌다인치과병원 · June 9, 2025

Heart Attack Warning Signs: Causes and Treatment and Prevention Recently, it was revealed that a celebrity who had no known illness passed away suddenly from an unexpected heart at...

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This page is an English translation of a Korean Naver Blog archive entry. For exact wording and source context, verify against the Korean archive original and the original Naver post.

Clinic: Sinchon Dain Dental Hospital

Original post date: June 9, 2025

Translated at: April 24, 2026 at 1:51 AM

Medical note: This translation does not guarantee medical accuracy or suitability for treatment decisions.

Heart Attack Warning Signs: Causes and

Treatment and Prevention

Heart Attack Warning Signs: Causes, Treatment, and Prevention image 1

Recently, it was revealed that a celebrity who had no known illness

passed away suddenly from an unexpected heart attack.

A heart attack is an emergency condition caused by a sudden

blockage of blood flow to the heart, and it is characterized by

arriving without warning.

However, most cases show specific warning signs before onset,

so let’s look at how to recognize and respond early to protect life.

Heart Attack Warning Signs: Causes, Treatment, and Prevention image 2

If more than 4 minutes pass after a heart attack, brain damage begins,

and if more than 5 minutes pass, the mortality rate rises sharply,

so it is good to know the warning signs in advance.

A common warning sign is a pressure or squeezing pain in the center

of the chest, and this pain may last for several minutes

or recur.

The pain can spread not only to the chest but also to the shoulders,

arms, neck, and jaw. In particular, pain radiating to the left arm

can indicate a problem with the heart.

Heart Attack Warning Signs: Causes, Treatment, and Prevention image 3

Some patients describe heart attack warning signs as feeling like

indigestion or as a tightness in the upper abdomen, so it can be

easily mistaken for simple fatigue or stress.

Therefore, careful observation is needed in daily life, and if you have

risk factors such as high blood pressure, diabetes, smoking, or a

family history, even mild symptoms should not be overlooked.

Shortness of breath is also a representative warning sign of a heart

attack. If you become breathless more easily than usual, or if you feel

uncomfortable breathing while lying down, it may be a cause for concern.

Heart Attack Warning Signs: Causes, Treatment, and Prevention image 4

If your chest feels heavy or tight when breathing, and you suddenly

feel like you are not getting enough air, there is also a high chance

of reduced heart function.

When heart function declines, fluid builds up in the lungs, leading to

difficulty breathing. In particular, if the heart attack is accompanied

by heart failure, shortness of breath may appear early.

Fatigue and lethargy are also important warning signs, and a feeling

of being drained persists even without doing much activity.

Heart Attack Warning Signs: Causes, Treatment, and Prevention image 5

Because the heart is the key organ that supplies blood to the entire

body, if its function declines, the first response may appear as overall

fatigue.

Therefore, if the symptoms mentioned above continue for several weeks,

do not assume it is just mild fatigue; it is helpful to undergo a proper

medical examination.

If there is a patient suspected of having a heart attack, brain cell

damage begins 4 to 5 minutes after the heart stops, so until emergency

personnel arrive, rescue breathing and CPR should be performed.

Heart Attack Warning Signs: Causes, Treatment, and Prevention image 6

Also, for people who have risk factors in daily life, prevention is

important through ECG testing, blood pressure and cholesterol

management, smoking cessation, and regular exercise.

If symptoms recur or gradually become more severe, do not delay;

you should promptly receive an examination from the relevant medical

professionals.

Because the survival rate for this condition varies greatly depending

on whether it is treated within the golden time, please be sure to

know how to respond quickly.

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