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.
Either a sphygmomanometer or a special machine is used to measure blood pressure. During this procedure, two numbers are recorded -- one appearing over the other as a fraction. The top number represents pressure when your heart is beating; the bottom number measures pressure when your heart is resting. The unit used when taking a blood pressure reading is millimeters of mercury (mmHg).