All computer monitors emanate blue light which tire and hurt our eyes. Windows 10 allows us to change our display settings to reduce the strain on our eyes. On any blank area of the desktop, right click with your mouse and then select Display Settings. In the Find a Setting box on the top left, type Night Light and select the item displayed for Night Light. You can turn Night Light on or off manually, select the intensity of the light and also set the time when Night Light comes on and goes off. If you switch on your location settings for Windows, the system automatically turns it on at Sunset and off at Sunrise!