Numerous studies suggest that blue light from your phone or computer in the evening disrupts the brain’s natural sleep-wake cycles, which are crucial for optimal function of the body and mind.
f.lux is a piece of software designed to help you sleep better simply by adjusting your computer screen. When the sun sets, it makes your computer look like your indoor lights. In the morning, it makes things look like sunlight again. Tell f.lux what kind of lighting you have, and where you live. Then forget about it. f.lux will do the rest, automatically
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