Your blood pressure is the force of your blood against the walls of your arteries as your heart pumps. Every time your heart beats (this is the heart contracting), it pumps blood into the arteries. Your blood pressure is highest when your heart beats and lowest when the heart rests between beats. Blood pressure readings use two numbers, read one over the other. The top number (systolic pressure) measures blood pressure when the heart beats. The bottom number (diastolic pressure) measures blood pressure in between heartbeats. A normal blood pressure reading is 120/80 or slightly lower. If you have a blood pressure reading of 90/60 or lower, you're usually considered to have low blood pressure (also known as hypotension).
Symptoms of low blood pressure include:
heart palpitations (if low blood pressure is caused by a heart problem)
fever or chills (if low blood pressure is caused by infection)
The following breast cancer treatme...
Let’s first take a look at what drives your blood pressure. Unlike a river, which flows continuously downstream, blood flow is pulsatile, with ebb and flow driven by pumping heart muscle. This cycle repeats itself 60 or so times each minute, every time your heart beats. With each heartbeat occurring about once per second, the heart squeezes, or contracts, within a split-second. The rapid contraction forces about 90 cc of blood (approximately 1/3 cup) up, pushing the aortic valve open, and blood passes up into the aorta and rapidly distributes upward to the brain (via the carotid arteries on either side of the neck), the arms, and downward to the abdomen, pelvis, and legs. The force of heart contraction and its rapid distribution to the body is measured as systolic pressure, or the top number in blood pressure. As the 90 cc or so of ejected blood distributes rapidly throughout the body, pressure in all the arteries drops over the ensuing half second, and the aortic valve closes. Th...
It is estimated that one in four adults (approximately 50 million) in the United States has elevated blood pressure – and more than 30 percent of them are unaware of it. Since people with hypertension may not exhibit any symptoms, their high blood pressure is often undiagnosed until complications occur. It has been proven that blood pressure screening facilitates early diagnosis and treatment. Proper treatment clearly reduces the risk of the complications associated with hypertension. Blood pressure Blood pressure is the force exerted against artery walls as blood is carried through the circulatory system. The measurement of force is made in relation to the heart's pumping activity, and is measured in millimeters of mercury (mmHg). The higher number, or systolic pressure, is the measurement of pressure that occurs when the ventricle of the heart contracts or beats. The lower number, or diastolic pressure, is the measurement recorded between beats, while the heart is ...
You should knowAnswers to your question are meant to provide general health information but should not replace medical advice you receive from a doctor. No answers should be viewed as a diagnosis or recommended treatment for a condition. Content posted by community members does not necessarily reflect the views of Remedy Health Media, which also reserves the right to remove material deemed inappropriate.