Why screen time can disrupt sleep - "Researchers have pinpointed how certain cells in the eye process ambient light and reset our internal clocks... When these cells are exposed to artificial light late into the night, our internal clocks can get confused, resulting in health issues."

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Why screen time can disrupt sleep - "Researchers have pinpointed how certain cells in the eye process ambient light and reset our internal clocks... When these cells are exposed to artificial light late into the night, our internal clocks can get confused, resulting in health issues."