Heart attacks have become increasingly common in recent years, and one of the major contributors is high blood pressure (hypertension)—a condition often described as a silent killer. Many people know hypertension is dangerous, but few understand how high blood pressure must rise to significantly increase the risk of a heart attack. To gain clarity, we spoke to Dr. Amit Kumar Chaurasia, an expert in Cardiology and Structural Heart Disease at Artemis Hospitals.
A heart attack occurs when the heart muscle does not receive enough blood supply. This lack of circulation causes oxygen deprivation, leading to the gradual death of heart cells. While several factors contribute to a heart attack, uncontrolled blood pressure is one of the most serious and underestimated triggers.
When blood pressure rises beyond normal levels, the force exerted on arterial walls increases. Over time, this continuous pressure damages the blood vessels. Damaged arteries become stiff, narrow, and less efficient in transporting blood. As a result, the heart receives insufficient oxygen and essential nutrients—a dangerous situation that can lead to a heart attack.
Understanding BP Levels: What Is Normal and What Is Dangerous?
Dr. Chaurasia explains the standard blood pressure ranges:
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120/80 mmHg – Normal Blood Pressure
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120–139/80–89 mmHg – Pre-Hypertension
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140–159/90–99 mmHg – Stage 1 Hypertension
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160/100 mmHg or higher – Stage 2 Hypertension
According to the expert, a reading of 120/80 mmHg is considered ideal. Slight variations may not be concerning. However, once blood pressure reaches 140/90 mmHg or above, the risk of cardiac complications begins to rise sharply. Persistent hypertension severely strains the cardiovascular system and may lead to a heart attack if left unmanaged.
Symptoms That Should Never Be Ignored
People with high blood pressure must stay alert to warning signs. Dr. Chaurasia advises immediate medical attention if the following symptoms appear:
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Chest pain, tightness, or burning sensation
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Discomfort in the upper back, shoulders, or jaw
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Shortness of breath
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Pain radiating to both arms
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Severe headache or sudden dizziness
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Excessive sweating
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Nausea or vomiting
These symptoms may indicate an ongoing heart attack or a developing cardiac crisis.
High blood pressure is manageable, but ignoring it can have life-threatening consequences. Maintaining a healthy lifestyle, monitoring BP regularly, and seeking timely medical help can significantly reduce the risk of a heart attack.