What's Sys and Dia?

The top number (systolic) minus the bottom number (diastolic) gives you your pulse pressure. For example, if your resting blood pressure is 120/80 millimeters of mercury (mm Hg), your pulse pressure is 40 — which is considered a normal and healthy pulse pressure.

What is normal SYS DIA and pulse?

What's a normal reading? For a normal reading, your blood pressure needs to show a top number (systolic pressure) that's between 90 and less than 120 and a bottom number (diastolic pressure) that's between 60 and less than 80.

What is a good SYS and DIA?

If your blood pressure is normal (less than 120/80), get it checked every year, or more often as your doctor suggests. If your blood pressure is elevated -- a systolic blood pressure between 120 and 129 or diastolic blood pressure of less than 80 -- your doctor will probably want to check it every 3-6 months.