High blood pressure, also called hypertension, is a very common health problem around the world. It increases the risk of serious conditions such as heart disease, stroke, and kidney damage.
Many people live with high blood pressure without knowing it because it often does not cause clear symptoms. For this reason, it is sometimes called the “silent killer.”
Doctors usually measure blood pressure using two numbers, known as systolic and diastolic pressure, and both have traditionally been considered important.
The systolic number is the top number in a blood pressure reading. It shows how much pressure is in the blood vessels when the heart beats. The diastolic number is the bottom number, and it shows the pressure when the heart is resting between beats. For many years, doctors have tried to control both numbers carefully when treating patients.
However, new research suggests that the systolic number may be more important than previously thought. A large study led by researchers from NUI Galway and other international institutions has raised questions about whether doctors need to worry as much about the diastolic number dropping too low.
The researchers studied data from more than 47,000 patients from different parts of the world. They wanted to find out whether lowering diastolic blood pressure to very low levels could cause harm. In the past, some experts believed that if the diastolic number became too low, it might reduce blood flow to important organs and lead to problems.
Surprisingly, the study did not find evidence to support this concern. The results showed that lowering diastolic blood pressure to low levels did not increase the risk of harm. Instead, the findings pointed to the importance of controlling systolic blood pressure as the main goal of treatment.
Based on these results, the researchers suggest that doctors should aim to keep systolic blood pressure within a range of about 100 to 130 millimeters of mercury, often written as mmHg. This target may help reduce the risk of major health problems, even if the diastolic number becomes quite low.
This new approach could make treatment simpler. Instead of worrying about both numbers at the same time, doctors may focus more on lowering the systolic number. This could help reduce confusion and make it easier to choose the best treatment plan for each patient.
High systolic blood pressure has been strongly linked to serious conditions such as heart attacks, strokes, and kidney disease. By focusing on this number, doctors may be able to better protect patients from these risks. The findings suggest that controlling systolic pressure is one of the most important steps in managing hypertension.
Even with these advances in treatment, prevention remains very important. There are several simple habits that can help keep blood pressure at a healthy level. Maintaining a healthy weight is one of them. Carrying extra weight puts more strain on the heart and blood vessels, which can raise blood pressure.
Eating a balanced diet is also essential. Foods such as fruits, vegetables, whole grains, lean proteins, and low-fat dairy can support heart health. At the same time, it is important to limit salt intake. Too much salt can cause the body to hold on to water, which increases pressure in the blood vessels.
Regular physical activity is another key factor. Exercise helps strengthen the heart so it can pump blood more easily. This reduces pressure in the arteries. Even simple activities like walking can make a difference if done regularly.
Other helpful steps include limiting alcohol intake, quitting smoking, and managing stress. Long-term stress can affect blood pressure, so relaxation techniques such as deep breathing or meditation may help. Regular blood pressure checks are also important, especially since the condition often has no symptoms.
This study, led by Dr. Bill McEvoy and published in the journal Circulation, provides new insight into how high blood pressure can be treated more effectively. By focusing on the systolic number, doctors may be able to improve care and reduce the risk of serious illness.
At the same time, healthy daily habits remain the foundation of good blood pressure control. Together, better treatment and better lifestyle choices can help people live longer, healthier lives.
If you care about high blood pressure, please read studies that early time-restricted eating could help improve blood pressure, and coconut sugar could help reduce blood pressure and artery stiffness.
For more information about blood pressure, please see recent studies about added sugar in your diet linked to higher blood pressure, and results showing plant-based foods could benefit people with high blood pressure.
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