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Technology Really Is Changing Human Circadian Rhythms, Scientists Say – ScienceAlert

We haven’t been dependent on natural light from the Sun since the invention of the light bulb in 1879.

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We haven’t been dependent on natural light from the Sun since the invention of the light bulb in 1879.
Nowadays, many people spend most of the day not just in artificially lit rooms but also looking at screens phones, computers, and TVs. Recently, there have been concerns that looking at bright screens in the evening can confuse your circadian rhythm, which is the internal clock that regulates our sleep-wake cycle.
We would assume that this means using a screen before bed might make it harder to…

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