1. Turn Down Screen Brightness. To turn down screen brightness, click the battery icon in the system tray and click Adjust screen brightness. Slide the brightness slider to the left until you can comfortably see the screen and itâs dimmest setting.
For a normal reading, your blood pressure needs to show a top number thatâs between 90 and 120, and a bottom number thatâs between 60 and 80. When both your systolic and diastolic numbers are in these ranges, youâre considered by the American Heart Association (AHA) to be within the normal range for blood pressure.
1 The top number is your systolic blood pressure. 2  The bottom number is your diastolic blood pressure. 3  For instance, a systolic pressure of 130 and a diastolic pressure of 75 is written as 130/75 and read as 130 over 75.he top number, or systolic pressure, is the measurement of the pressure of the blood in your arteries when your heart contracts, or beats, and is forcing blood out to the rest of your body.