A Phone Arena report details six Android apps that can help adjust the lighting of a smartphone to help promote sleep as well as reduce eye strain.

You may have heard about Night Shift, one of the new features that Apple has been pampering iOS users with since the version 9.3 update. It’s a system service designed to limit the amount of blue light emitted by the screen in order to reduce eye strain and prevent the over-stimulating effect it has on the brain.

You may not know it, but numerous studies have confirmed that exposing your retinas to bright blue light before bedtime, which is exactly what you do when using your phone or tablet for bedtime reading, messes up the melatonin levels in your body. Melatonin is the hormone which regulates your sleep timing in accordance with your body’s circadian rhythm and the natural lighting conditions.

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