The Effects Of Blue Screens On Our Health

Fatigue

Blue light is important during the daytime, especially the blue light emitted by the sun. It increases attention and boosts our mood, and exposure to it during the day helps set our circadian rhythm, which is the body’s internal clock that tells us when to sleep and when to wake. Exposure to blue light at night, however, does just the opposite. Even at low levels, blue light disrupts the circadian rhythm and prevents the release of melatonin, a hormone that helps regulate our sleep cycle. This disruption can lead to poor quality sleep or insomnia, resulting in fatigue the next day.

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