What does it mean when systolic is high and diastolic is low?

As a medical professional with expertise in cardiology, I can explain the significance of high systolic and low diastolic blood pressure readings. When we talk about blood pressure, we're referring to the force that the blood exerts on the walls of the blood vessels. Blood pressure is typically measured in two numbers: systolic and diastolic. The systolic pressure is the pressure when the heart is beating and pumping blood, while the diastolic pressure is the pressure when the heart is at rest between beats. A high systolic reading means that the pressure during the heart's contraction is higher than normal. This can be a sign of conditions like hypertension (high blood pressure) or other cardiovascular issues. On the other hand, a low diastolic reading indicates that the pressure when the heart is at rest is lower than normal. This can sometimes be seen in young, healthy individuals and is not typically a cause for concern. However, if accompanied by a high systolic pressure, it could indicate a condition known as isolated systolic hypertension, which is more common in older adults and is a significant risk factor for cardiovascular disease. It's important to note that blood pressure readings can be influenced by various factors, including stress, physical activity, and the time of day. Therefore, a single high systolic or low diastolic reading does not necessarily indicate a problem. It's best to consult with a healthcare provider for a thorough evaluation and to monitor blood pressure over time to establish a pattern.

Yes. If you have a diastolic number �� the bottom number of a blood pressure measurement �� less than 90 millimeters of mercury (mm Hg) and a systolic number �� the top number of a blood pressure measurement �� greater than 140 mm Hg, you have a common type of high blood pressure called isolated systolic hypertension.