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  2. Blue light spectrum - Wikipedia

    en.wikipedia.org/wiki/Blue_light_spectrum

    It emits more blue light than traditional incandescent bulbs, potentially impacting the quality of sleep and eye health if used excessively at night. [2] [8] A person using a smartphone at night. Blue light is emitted by digital screens such as computers, tablets, smartphones, and televisions, which can lead to extended exposure in modern lives ...

  3. Biological effects of high-energy visible light - Wikipedia

    en.wikipedia.org/wiki/Biological_effects_of_high...

    Harvard Health Publishing asserts that exposure to blue light at night has a strong negative effect on sleep. [17] The aforementioned ANSES report "highlights [the] disruptive effects to biological rhythms and sleep, linked to exposure to even very low levels of blue light in the evening or at night, particularly via screens". [18]

  4. Light effects on circadian rhythm - Wikipedia

    en.wikipedia.org/wiki/Light_effects_on_circadian...

    Humans are sensitive to light with a short wavelength. Specifically, melanopsin is sensitive to blue light with a wavelength of approximately 480 nm. [19] The effect this wavelength of light has on melanopsin leads to physiological responses such as the suppression of melatonin production, increased alertness, and alterations to the circadian ...

  5. Are blue light glasses really worth it? A new analysis says ...

    www.aol.com/finance/blue-light-glasses-really...

    According to Harvard Medicine, blue light can help boost focus and mood during the day but can disrupt sleep at night and suppress the release of melatonin—the sleep hormone. Blue light has also ...

  6. Blue light-blocking glasses don't protect eyes or improve ...

    www.aol.com/news/blue-light-blocking-glasses...

    A new review finds that the popular lenses don't help with eye strain, alertness or sleep. Blue light-blocking glasses don't protect eyes or improve sleep, study finds Skip to main content

  7. How is blue light impacting our health? Scientists study ...

    www.aol.com/too-much-blue-light-accelerate...

    Excessive blue light can cause accelerated aging in flies because this exposure can cause cellular damage, according to a study released Wednesday.

  8. Screen time - Wikipedia

    en.wikipedia.org/wiki/Screen_time

    This relationship is because much of the time spent on screens for children is at night, which can cause them to go to sleep later in addition to the blue light from the screens making it more difficult to sleep. [20] Night-time use of screens is common for Americans ages 12–18: A 2018 nationally representative survey found that 70% use their ...

  9. Why Blue Light Glasses May End Up Preventing Disrupted Sleep

    www.aol.com/lifestyle/why-blue-light-glasses-may...

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