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 More on low blood pressure. 2  More than 90 over 60 (90/60) and less than 120 over 80 (120/80): Your blood pressure reading is ideal and healthy. 3  Follow a healthy lifestyle to keep it at this level. if your bottom number is 90 or more-then you may have high blood pressure, regardless your top number. 2  if your top number is 90 or less-then you may have low blood pressure, regardless of your bottom number. 3  if your bottom number is 60 or less-then you may have low blood pressure, regardless of your top number.