Please try again later. In the second half of our look at the endocrine system, Hank discusses chemical homeostasis and hormone cascades. Specifically, he looks at the hypothalamus-pituitary-thyroid axis, or HPT axis, and all the ways your body can suffer when that system, or your hormones in general, get out of whack. Table of Contents.
The top number refers to the amount of pressure in your arteries during contraction of your heart muscle; this is called âsystolicâ pressure. The bottom number refers to your blood pressure when your heart muscle is between beats; this is called âdiastolicâ pressure.For a normal reading, your blood pressure needs to show a top number thatâs lower than 120, and a bottom number thatâs lower than 80.When both your systolic and diastolic numbers are in these ranges, then you are considered by the American Heart Association (AHA) to be within the normal range for blood pressure.or a normal reading, your blood pressure needs to show a top number thatâs lower than 120, and a bottom number thatâs lower than 80. When both your systolic and diastolic numbers are in these ranges, then you are considered by the American Heart Association (AHA) to be within the normal range for blood pressure.
Here's a quick guide to your heart-health numbers: 1. Blood Pressure: Key to Heart Health. Your doctor tells you your blood pressure numbers, or you hear the doctors on ER shout pressure's dropping! Do you actually know what that means? Blood pressure consists of two numbers. Your systolic pressure measures the pressure of blood against artery walls when the heart pumps blood out during a heartbeat, while the diastolic pressure measures the same pressure between heartbeats, when the heart fills with blood. Both of these numbers are important, says Mosca. Just because one is normal doesn't mean you're off the hook. Normal blood pressure is below 120/80. Pre-hypertension is 120 to 139 (systolic) and/or 80 to 89 (diastolic ...