What Are the Normal Ranges for High and Low Blood Pressure

For a healthy adult, the ideal blood pressure is generally considered to be around 120/80 mmHg. This level reflects a balanced cardiovascular system and is often seen as the standard for normal blood pressure. The upper number, known as systolic pressure, represents the force your heart exerts when pumping blood. The lower number, or diastolic pressure, indicates the pressure in your arteries between heartbeats.

Understanding Normal Blood Pressure Ranges

The normal range for systolic pressure (the "high" blood pressure) is typically between 100 mmHg and 140 mmHg. Meanwhile, the diastolic pressure (the "low" blood pressure) should ideally fall between 60 mmHg and 90 mmHg. When both numbers remain within these ranges, it indicates a healthy circulatory system and a lower risk of cardiovascular complications.

When Blood Pressure Crosses the Threshold

Hypertension Explained

If your blood pressure consistently reads above 140/90 mmHg, it is classified as hypertension. This means the systolic value exceeds 140 mmHg, and the diastolic value goes beyond 90 mmHg. Hypertension increases the risk of heart disease, stroke, and other serious health conditions. It is crucial to monitor and manage high blood pressure through lifestyle changes, medication, and regular medical consultations.

Isolated Systolic Hypertension

In older adults, a common condition known as isolated systolic hypertension occurs when only the systolic pressure rises above 140 mmHg while the diastolic pressure remains below 90 mmHg. Although the diastolic value appears normal, this condition still falls under the category of hypertension and requires medical attention to prevent long-term health issues.

Low Blood Pressure and Its Implications

On the other end of the spectrum, blood pressure readings below 100/60 mmHg are considered low. Hypotension, or low blood pressure, can cause symptoms such as dizziness, fatigue, and fainting. While some individuals naturally have lower blood pressure without complications, others may need treatment depending on the underlying causes and associated risks.