Akin to Android's aptly named Bedtime mode which essentially does the same thing, turning your iPhone screen black and white effectively mutes the blue light associated with constant phone use ...

However, grayscale — in which you see nothing but black, white ... phone from a different manufacturer, the directions should be similar to that for the Pixel.) Switching your screen to ...

I’m unaware of research done on the negative effects of black-and-white screen usage, but I am aware of phone screens’ harmful impact on eye health. Another response indicated that at 12:28 p.m., far ...

You can try to deal with this by making your phone less ... your home screen. The basic idea: add the widget to your homescreen, change the wallpaper to a black or white color that matches the ...