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.
Quick Answer. According to the American Heart Association, a healthy blood pressure reading is equal to or less than 120 over 80. The top number refers to systolic pressure, which is the pressure against artery walls when the heart pumps. The bottom number, diastolic pressure, represents pressure between beats.