Labile or borderline hypertension is arterial blood pressure which raises and lowers frequently.

People who have such hypertension have the blood pressure changed from high to normal. Such kind of hypertension occurs when the arterial blood pressure is sometimes above or sometimes below 140/90 mm Hg. The higher the arterial pressure is, the more possibilities it can have for its lowering.

Arterial hypertension is diagnosed with recording of the blood pressure.

Blood pressure can increase under stress. In such case patients waited for 20 to 30 minutes to see if the blood pressure would return to its normal level. If it happened, no treatment was applied. The measurement of blood pressure can prevent possible cardiovascular risks.

After the duration of 40 minutes if high blood tension is available, certain measures should be applied. It was found that casual blood pressure can lead to future cardiovascular risks. Arterial blood pressure can be easily changed all the day long.

The diurnal systolic tension can vary from 33 mm to 100 mm Hg, diastolic tension varies from 10 mm Hg to 40 mm Hg. Blood tension can vary more among hypertensive people.

During sleep tension can fall. Such variation in blood pressure is quite normal and is not the cause of worry.