Flux is an essential tool for anyone who works on their computer into the evening or late into the night and cares about their quality of sleep. The blue light from your computer actually messes with your body’s natural circadian rhythm and tricks it into thinking that it’s not as late as it really is, so that your body stops producing melatonin (the chemical that helps you fall asleep naturally). Flux adjusts the color temperature of your screen to a “warmer” orangish shade that is easier on your eyes and doesn’t keep you up all night even if you have to work late.

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