99% of heart patients missed these silent warning signs, finds study

A new study reveals that nearly everyone who suffers a heart attack or stroke had warning signs long before, but most never noticed them

Almost everyone who suffers a heart attack or stroke had warning signs long before it happened, they just didn’t notice them, according to a new global study.  The study, titled Prevalence of modifiable risk factors before first cardiovascular events, examined health data from more than nine million people in South Korea and nearly 7,000 in the United States.

 

Published in the Journal of the American College of Cardiology, the research found that 99 per cent of people who experienced their first major heart problem had at least one risk factor such as slightly high blood pressure, raised cholesterol, high blood sugar, or a history of smoking.

 

According to the researchers, even modest increases, such as blood pressure above 120/80 mmHg or cholesterol slightly over 200 mg/dL, were enough to raise the risk. The study suggests that “optimal” levels, not just “normal” ones, matter when it comes to heart health.

What are the four signs that people ignore?

The study pinpointed four key indicators that quietly increase heart risk:

• High or borderline blood pressure (≥120/80 mmHg)
• Elevated cholesterol (≥200 mg/dL)
• Raised fasting blood sugar (≥100 mg/dL) or early diabetes
• Smoking history, even in the past

The study highlighted that even one of these signs is enough to put a person in danger.

Why do so many people miss these signs?

According to the authors, these numbers don’t always come with symptoms. For instance, slightly high blood pressure or sugar levels rarely cause discomfort, which is why millions assume they are healthy.

 

The researchers emphasise that “absence of symptoms doesn’t mean absence of disease.” Regular check-ups and lab tests are often the only way to spot trouble before it starts.

Can lifestyle changes really make a difference?

The researchers stress that most of these risks are modifiable, meaning they can be reduced or even reversed through lifestyle changes.

 

Simple steps like eating less processed food, exercising regularly, quitting smoking, and getting enough sleep can dramatically lower the odds of developing heart disease.

 

Even small improvements in blood pressure, cholesterol, or blood sugar can help prevent a lifetime of cardiac issues. 

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This content is for informational purposes only and is not a substitute for professional medical advice.