Alexander Flint, a stroke specialist at Kaiser Permanente in Northern California and lead author of the study, told Healthline. The top number, or systolic, reflects how hard your heart is working to pump blood into your arteries. The bottom number, or diastolic, indicates the pressure as your heart relaxes between beats.
The top number, called systolic pressure, is the pressure of vessels when the heart beats and pumps out blood, while the bottom number, called diastolic pressure, is the pressure in blood vessels when the heart is at rest and filling up with blood. Researchers in this study found that high systolic pressure placed patients at greater risk of heart attack and stroke, but that uncontrolled diastolic pressure could also adversely affect cardiovascular health. On average, patients with systolic blood pressure of had a 4.
Almost half of American adults have high blood pressure, or hypertension. Blood pressure refers to the force of blood flowing through your blood vessels, according to the American Heart Association. When your heart beats, it pumps blood throughout the body's blood vessels.
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When uncontrolled, both measures of blood pressure can increase the risk of heart attack and stroke, according to a study published Wednesday in the New England Journal of Medicine. Blood pressure is the force of blood flow in arteries, veins and capillaries. The top number, called systolic pressure, is the pressure of vessels when the heart beats and pumps out blood, while the bottom number, called diastolic pressure, is the pressure in blood vessels when the heart is at rest and filling up with blood.
Low blood pressure might seem desirable, and for some people, it causes no problems. However, for many people, abnormally low blood pressure hypotension can cause dizziness and fainting. In severe cases, low blood pressure can be life-threatening.
Both elevated systolic blood pressure the top number and diastolic the bottom numbertogether or alone, increase the risk for cardiovascular disease. The systolic reading indicates the pressure in the arteries produced when the heart beats; the diastolic is the arterial pressure between beats, when the heart is at rest. Though high systolic and diastolic readings are both associated with increased risk, they may present different risks for different diseases.
More of us than ever before are taking medications to lower our blood pressure. Longstanding guidelines suggest that most people should aim for a systolic blood pressure the first number in a reading no higher than millimeters of mercury mm Hg. But inthe results of the Systolic Blood Pressure Intervention Trial SPRINT suggested that reaching a target of mm Hg could further reduce the risks associated with high blood pressure, including heart attack, stroke, heart failure, and death. Yet reaching that lower target often requires three blood pressure medications, which can increase the likelihood of side effects.
When I am monitoring my blood pressure, which number is most important — top, bottom, or both? While both numbers in a blood pressure reading are essential for diagnosing and treating high blood pressure, doctors primarily focus on the top number, also known as systolic pressure. Systolic pressure reflects the force produced by the heart when it pumps blood out to the body, while diastolic blood pressure the bottom number is the pressure in your blood vessels when the heart is at rest.