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

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

    Blue light, a type of high-energy light, is part of the visible light spectrum. High-energy visible light (HEV light) is short-wave light in the violet/blue band from 400 to 450 nm in the visible spectrum, which has a number of purported negative biological effects, namely on circadian rhythm and retinal health (blue-light hazard), which can lead to age-related macular degeneration.

  3. Things We Used to Think Were Completely Safe But Might Kill ...

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    Asbestos. Asbestos was used in lots of products, from insulation to automobile clutch fittings, fake snow, fire-resistant clothing, and building materials. The naturally-occurring mineral fiber ...

  4. Fluorescent lamps and health - Wikipedia

    en.wikipedia.org/wiki/Fluorescent_lamps_and_health

    Fluorescent lamps with magnetic ballasts flicker at a normally unnoticeable frequency of 100 or 120 Hz (twice of the utility frequency; the lamp is lit on both the positive and negative half-wave of a cycle). This flickering can cause problems for some individuals with light sensitivity [ 1] and are associated with headaches and eyestrain.

  5. The dangers of LED face masks you should know about - AOL

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    Palep herself was quite concerned with the dosage of the light therapy provided by the masks, as not every patient may require the same amount and duration of the treatment. "The potential dangers ...

  6. Health effects of sunlight exposure - Wikipedia

    en.wikipedia.org/wiki/Health_effects_of_sunlight...

    [11] [12] Acute exposure may lead to a painful sunburn, which can increase the chances of developing serious skin problems later in life. [13] Long-term sunlight exposure is known to be associated with the development of some types of skin cancer, skin aging, immune suppression, eye diseases such as cataracts. [14] [15]

  7. Health threat from cosmic rays - Wikipedia

    en.wikipedia.org/wiki/Health_threat_from_cosmic_rays

    Health threats from cosmic rays are the dangers posed by cosmic rays to astronauts on interplanetary missions or any missions that venture through the Van-Allen Belts or outside the Earth's magnetosphere. [ 1][ 2] They are one of the greatest barriers standing in the way of plans for interplanetary travel by crewed spacecraft, [ 3][ 4][ 5] but ...

  8. Does Your Daily Multivitamin Really Work? New Study Finds ...

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    People take vitamins for all kinds of reasons—from vitamins for stress to vitamin B12 supplements —but many add them to their routine with the hope of boosting longevity. However, new research ...

  9. Eccentricity effect - Wikipedia

    en.wikipedia.org/wiki/Eccentricity_effect

    Eccentricity effect. The eccentricity effect is a visual phenomenon that affects visual search. As retinal eccentricity increases (i.e. the light of the image enters the eye at a larger angle and approaches peripheral vision), the observer is slower and less accurate to detect an item they are searching for. [ 1]

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