It can be a little jarring at first, but it doesn’t take long to get used to it. Both these features give your screen a red tint to remove the blue light spectrum from your display, making it easier on the eyes in dark environments. On iOS devices, you can use the new Night Shift feature. On desktop computers, you can use an app called f.lux. RELATED: Artificial Light Is Wrecking Your Sleep, and It's Time to Do Something About It This also supposedly leads to poor sleep, which leads to poor health. Here’s how to combat that on your Android phone. They say that blue spectrums of light are bad for your eyes, especially at night when you’re more likely to be looking at your phone in a dark environment.