I'm sure that most of you have heard about the measurement of blood pressure and you may have wondered why we describe it with two numbers. Couldn't blood pressure be just one number? Let's say, "Your blood pressure is 14." Why do we use two numbers? And by extension, are they both important? Are they both useful? Which should we pay more attention to? First of all, let me explain why blood pressure is defined by two numbers. Blood pressure fluctuates inside the vessels, and these two numbers define the maximum and the minimum. Inside this hydraulic system, which is called vascular system, the maximum pressure is called systolic, and the minimum is called diastolic. In every heartbeat, the blood pressure fluctuates between these two numbers. Scientists tried to find the role that these two numbers play in our health, and they found that the higher these two numbers are, the more often do strokes, heart attacks, kidney diseases etc. occur. Therefore, both numbers need to be low. But it is more important that one of the two numbers be low. Which is that? The answer is the higher one. A study that was published in 2019 proved that systolic blood pressure, the higher number, namely the maximum blood pressure achieved inside the vessels, leads to the diseases I mentioned earlier. Diastolic blood pressure is associated with the same diseases too, but the association with systolic blood pressure is three times stronger. The usefulness of this study is that we know which indices we should target when we make interventions in our lifestyle. Either you start a healthy diet program or an exercise program, or some medication in order to reduce blood pressure, it's important to know which of the two numbers you should target and reduce more. And this is systolic pressure. If you want to reduce the risk of increased blood pressure, or if you have high blood pressure and you want to reduce it, you should definitely watch the video on my right, where I analyze the risk factors, namely the habits and behaviors that lead to increased risk of high blood pressure. It's worth watching. Thank you very much!

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