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Cardiac physiology or heart function is the study of healthy, unimpaired function of the heart: involving blood flow; myocardium structure; the electrical conduction system of the heart; the cardiac cycle and cardiac output and how these interact and depend on one another.
Blood pressure is recorded as two readings: a higher systolic pressure, which occurs during the maximal contraction of the heart, and the lower diastolic or resting pressure. [11] In adults, a normal blood pressure is 120/80, with 120 being the systolic and 80 being the diastolic reading. [12] Usually, the blood pressure is read from the left ...
Here’s what your blood pressure should be at every age Sleeping in on weekends could cut your risk of heart disease by up to 20% , new study shows When’s the last time you were angry?
When this happens, your heart rate and breathing become faster, and your blood pressure soars. This stress response can be useful in times of imminent danger, but when it happens frequently it may ...
Bradycardia was defined as a heart rate less than 60 beats per minute when textbooks asserted that the normal range for heart rates was 60–100 bpm. The normal range has since been revised in textbooks to 50–90 bpm for a human at total rest. Setting a lower threshold for bradycardia prevents misclassification of fit individuals as having a ...
Normal blood pressure when at rest is within the range of 100–140 millimeters mercury (mmHg) systolic and 60–90 mmHg diastolic. [68] High blood pressure is present if the resting blood pressure is persistently at or above 140/90 mmHg for most adults. [66] Different numbers apply to children. [69]