Samsung phones running Android 9/Pie support a more limited version of dark mode, and some apps with their own dark mode may support older operating systems. If you have an older operating system, you may not be out of luck. And for some Google or Apple apps, that's the only way to turn on dark mode. If you have at least iOS 13 or Android 10, your device will support a system-wide dark mode. Not all apps offer an official dark mode, but many have jumped on the bandwagon in recent years. You can also swap out white backgrounds for grays and blacks to give your eyes a break. Giving up mobile devices isn't really an option for most people, though, so we turn to things like blue light filters or blue light glasses. During the COVID-19 pandemic, data usage has skyrocketed and time spent on a screen has greatly increased.Īll that bright light streaming into your eyeballs isn't great. Blue light can confuse your brain about the time of day, disrupting sleep. In 2019, US adults looked at mobile devices more than TV for the first time, averaging 3 hours, 10 minutes per day, according to eMarketer (Opens in a new window). We spend a good portion of our day staring at screens.

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